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- Ferrari 360 Challenge Stradale -
Was going to dinner with a couple of friends and decided to pass by a restaurant which usually has a bunch of nice cars parked out front. Luckily, this was parked outside right behind 2 black Rolls Royce Ghosts. Absolutely love this car. I would take one over a Scuderia or 458 in a heartbeat. Also, I think this is the best sounding car ever made.
Huttleston Broughton, de eerste lord Fairhaven, begon rond 1930 met het transformeren van het terrein rond de 900 jaar oude Anglesey Abbey in een van de weelderigste 20e-eeuwse Britse tuinen. Hij gebruikte daarvoor het familiefortuin, in Amerika verworven met mijnbouw en spoorwegen. Elk jaar liet hij zijn hoveniers meer dan 5000 hyacinten op rij planten. Hij legde lanen met bomen aan en brede, open showgazons waar de mooiste collectie 17e- en 18e-eeuwse tuinbeelden van Groot-Brittannië is te zien. De gazons voeren naar omsloten tuinen, een arboretum en een pinetum. Er zijn in totaal 23 tuinen op Anglesey Abbey. Een wandeling langs de Fairhaven Centenary Walk laat zien dat een tuin zelfs hartje winter vol kleur, geur en schoonheid kan zijn. De imposante omvang van deze 2,6 kilometer lange route, die na Fairhavens dood werd aangelegd, is een reflectie van diens extravagantie. Het is niet ongewoon om 's winters bezoekers op handen en voeten tegen te komen. Met name sneeuwklokjesliefhebbers bevolken dan de tuinen om de befaamde sneeuwklokjescollectie van dichtbij te bewonderen. Huis en tuinen gingen in 1966 over naar de National Trust. De toenmalige tuinadviseur, Graham Stuart Thomas, was ontzet over het grote aantal dahlia's dat werd gebruikt en gaf opdracht e weg te halen. Gelukkig negeerden de tuinlieden de grote man en bloeien de dahlia's hartje zomer nog steeds even uitbundig.
Bron: Jan Hendrych in "1001 Tuinen die je gezien moet hebben".
In tegenstelling tot gister waren er vandaag heel brede opklaringen in plaats van dat saaie grijze weer. In een heerlijk zonnetje komt de SBBCD 186 103 met de HTRS 189 211 en Busto-shuttle ( 40200) langs de 2 aanwezige fotografen gereden. De voorste loc mag volgens iemand toch nodig eens in bad, in het vuil staat geschreven: dreckig. (duits voor vies) Groet terug aan de machinist en bedankt voor de tip.
22-9-2012, Vaarleseweg Helmond
Baer's pochard (Aythya baeri) is a diving duck found in eastern Asia. It is a resident bird in North and Central China, formerly bred in southeast Russia and Northeast China, migrating in winter to southern China, Vietnam, Japan, and India. Baer's pochard is a monotypic species. The holotype was collected in middle Amur.
It has a distinctive black head and neck with green gloss not present elsewhere in Aythya. While in poor light, it is likely to look completely black. It is very similar and closely related to the ferruginous duck, and they were previously considered to be a single species; Baer's pochard is differentiated by its white flanks when floating on the water, as well as its larger size and longer, more rounded head.
Its breeding season varies by latitude and environment. The nest, built from sedges, reeds and other plants, is placed among emergent vegetation, usually in shallow water or on small islands or ridges. Its clutch size ranges from 5 to 14. Males usually take on sentry duty, and females take on the responsibility of incubating.
Baer's pochard was once a common species in its range, but is now very rare. The number of mature individuals may be less than 1,000, and its population is still declining. Hunting and habitat loss are considered to be the main reasons. This species has been classified as critically endangered by the IUCN, and listed as a first-class protected animal in China.
Taxonomy
Baer's pochard was first scientifically described in 1863 as Anas baeri by Gustav Radde in his book Reisen im Süden von Ost-Sibirien. The epithet and English common name commemorate the Baltic German naturalist Karl Ernst von Baer. It is also called eastern white-eye, Siberian white-eye, Baer's white-eye and green-headed pochard. The holotype was collected from a small flock in middle Amur during the breeding season. In 1929, when British ornithologist E. C. Stuart Baker studied the birds of British India, he treated Baer's pochard and ferruginous duck as conspecific. However, Chinese ornithologist Tso-hsin Cheng treated them as two distinct species, as they had breeding grounds which did not overlap, and he had seen no evidence of hybridisation. While the species was long thought to have arisen from eastern populations of the ferruginous duck, American ornithologist Paul Johnsgard says its behaviors suggest it may instead be more closely related to the hardhead.
American ornithologist Bradley Curtis Livezey published a phylogenetic study based on morphological data in 1996, in which he proposed his view on the relationship among Tribe Aythyini. Baer's pochard, ferruginous duck, hardhead and Madagascar pochard are classified in subgenus Nyroca (the "white-eyes"), intrasubgenus relationship is unclear, but the ferruginous duck was suggested to be the sister group of Baer's pochard. The subgenus Aythya (the "scapu", including New Zealand Scaup, ring-necked duck, tufted duck, greater scaup and lesser scaup) is the sister group of subgenus Nyroca. The subgenus Aristonetta (the "redheads", including the common pochard, canvasback and redhead) is the sister group of all other pochards.
Two molecular phylogenetic studies on Anseriformes or Anatidae were published in 2000s, some mitochondrial genes were sequenced, but Baer's pochard was absent in both of them. The mitochondrial genome of Baer's pochard was sequenced and published in 2021. Molecular phylogenetic studies determined the relationships among Baer's pochard and other closely related species:
Tribe. Aythyini
Aythya
Baer's pochard Aythya baeri
Tufted Duck A. fuligula
Common pochard A. ferina
Redhead A. americana
Netta
Red-crested pochard Netta rufina
Asarcornis
White-winged duck Asarcornis scutulata
Description
The Baer's pochard is 41–47 cm (16–19 in) long with a 70–79 cm (28–31 in) wingspan. The male is slightly larger, weighing on average 500–730 g (18–26 oz), wings lengthed 18.6–20.3 cm (7.3–8.0 in), tail at 53–60 mm (2.1–2.4 in), and culmen at 38–44 mm (1.5–1.7 in). Relatively, the female weighing on average 590–655 g (20.8–23.1 oz), wings lengthed 19.1–20.5 cm (7.5–8.1 in), tail at 51–64 mm (2.0–2.5 in), and culmen at 40–44 mm (1.6–1.7 in). Both male and female's tarsometatarsus lengthed 33–34.7 mm (1.30–1.37 in).
Breeding male has a black head and neck with green gloss, white or paler yellow eyes, blackish-brown back, dark chestnut breast, white or light chestnut flanks and a short and low tail. The green gloss on its head is unique among Aythya. While it is likely to look completely black in poor light. Female has a dark brown head and neck that blend into the chestnut-brown breast and flanks. Eclipse and first-winter male resembles female, but retain the white eyes, while female has brown eyes. Both male and female have wide white speculum feathers, white vent-side, dark-grey bill, black nail and dark-grey tarsometatarsus.
It is similar to its close relative, the ferruginous duck (A. nyroca), both have white vent-side and iris in males, black nail, and wide white speculum feathers. Although Baer's pochard is bigger, has a longer head, body and bill. Unlike the ferruginous duck's tall and triangular head, Baer's pochard has a more rounded head and a flatter forehead. The white part on the belly extends to its flanks in Baer's pochard, which is visible when floating on the water, while the ferruginous duck has a smaller white part on its belly. The female Baer's pochard has a distinctly bright chestnut spot at the lore, which is absent in ferruginous duck.
Baer's pochard is usually a quieter duck, but during its courtship display, both sexes give harsh graaaak. Females may give kura kura kura and males may give kuro kuro at other times.
Distribution
Baer's pochard traditionally bred in the Amur and Ussuri basins in Northeast China and the southeastern Russian Far East. In recent years, it has also colonised North China and Central China. It winters in most areas south of the Yellow River in China, Taiwan, Japan, Bangladesh, India, North Korea, Laos, Myanmar, Nepal, Thailand and Vietnam, and occasionally appears in Bhutan, South Korea, Philippines or Pakistan as a rare vagrant. It leaves its wintering grounds by mid-March and returns to them by mid-October or early November.
The species has become extremely rare in its traditional breeding areas, and since 2010, there have been no confirmed breeding reports in all sites north of Beijing. However, the numbers recorded during the breeding season are smaller than those recorded in winter, so there may still be unknown breeding sites. For example, there are some doubtful breeding reports in the Chinese part of Lake Khanka, the Russian part of Lake Khasan, and the Muraviovka Park [ru]. Since 2012, new breeding sites have been discovered in several provinces of China, including Hebei, Hubei and Jiangxi; the latter two cities are far from traditional breeding sites in the Amur and Ussuri basins.[1] In these new breeding areas, warmer climate conditions provide a longer breeding season (about twice as long as in the Amur and Ussuri basins) which allows birds to lay a replacement clutch if their first clutch fails. Baer's pochard is no longer migratory in central and eastern China.
The wintering grounds have also contracted significantly in recent years. Since at least the winter of 2010-2011, Baer's pochard no longer winters in any site outside mainland China, except as a vagrant. In its wintering grounds in mainland China, the population has also declined severely, by more than 99%.
Behaviour and ecology
Baer's pochard is a shy species, that inhabit open, slow-flowing lakes, swamps and ponds. It breeds around lakes with rich aquatic vegetation, nesting in dense grass, flooded tussock meadows, or flooded shrubby meadows. In winter, it forms large flocks on large and open freshwater lakes and reservoirs with other pochards. It has strong wings, and can flyor walk at high speeds. It is also good at diving and swimming, and can quickly take off from the water when threatened or disturbed. In migrating season, they form small groups of more than 10 or dozens of birds, flying at low altitudes in wedge-shaped formations. During winter, Baer's pochard sleeps during the day, leaves for unknown feeding sites with other ducks in the dusk, and returns before dawn. Little is known about their diet beyond aquatic plants, grass seeds and molluscs.
Breeding
Baer's pochard appears to have a monogamous mating system, at least within a breeding season. In traditional breeding grounds in northeastern China, Baer's pochard gathers in gaps in the ice before it completely thawed. After the ice season, it gathers on the large, open lakes. They breed from mid-to-late May. While in Fuhe Wetland in Wuhan, Hubei, Baer's pochard gathers in large groups on the open lakes before breeding season. It is divided into small groups in mid-April, in which they will courting and mating. During courtship, the male swims around the female, repeatedly nods his head up and down. When other males approach, it swims toward them quickly to drive them away, but there is no violent fight between them. The female also nods her head in response. When the male approaches, the female straightens her neck and lowers her head to the water. He then climbs onto her body and bites her nape feathers to mate. After the mating, the male and female leave the flock for nesting.
Baer's pochard's nest is circular cylindrical, located among emergent vegetation, usually in shallow water or on small islands or ridges. The nest is made of sedges, reeds and other plants collected from the immediate vicinity, lined with a layer of down. Its clutch ranged from 5 to 14, with an average of 9.7. Males usually take on sentry duty at about 10 meters from the nest during hatching. Females leave the nest to forage 2–3 times a day, usually during 6:00-20:00, and lasted for 27–240 min. They cover the eggs with nest materials during forging, and place them onto their back when coming back. If water levels are elevated by heavy rainfall or human activity, females increase the height of the nest to avoid flooding. During the hottest days, females often stand on the nest and shelter eggs from the strong sunlight, whilst allowing circulation of air around them. Females also take water into their plumage and use it to cool the eggs. The incubation lasted for 23-26 days.
Studies have shown that the nest survival rate[note 3] of Baer's pochards is about 14–45%, and each clutch may lose one to nine eggs. About 20-30% of eggs hatched successfully, and 3–16 young fledged per nest. There are three major reasons contributing to the failure, including nest desertion (abandoned by parents), nest predation (mainly by Siberian Weasels) and flooding. The proportion of these causes varies among years. In addition, most of the breeding sites in Wuhan are Crayfish farms, the farming work and eggs collection may also be hindrances.
Biological interaction
Incomplete inter- and intra-specific brood parasitism were found in Baer's pochard. In Xianghai National Nature Reserve [zh], Baer's pochards could parasitize gadwall and common pochard, and may be parasitized by common pochard. In Wuhan, Baer's pochard shares breeding sites with cotton teal, eastern spot-billed duck and mallard. Interspecific brood parasitism was not observed. Intraspecific parasitic was found in Wuhan. If caught, the parasite will get attacked by the host.
Baer's pochard has hybridized with lesser scaup, common pochard, ferruginous duck, New Zealand scaup, chestnut teal and wood duck in captivity. Ferruginous duck was observed displaying to Baer's pochards several times in China and South Korea. Some individuals showed mixed characteristics of common, ferruginous and Baer's pochards, so they may be currently hybridising in the wild. The Baer's pochard has declined sharply in recent years, but the ferruginous and common pochard has expanded their breeding grounds, and even to the core areas of Baer's pochard's, which makes the hypothesis possible.
The research on its gut microbiota showed that the richest microorganism phyla of Baer's pochard are Bacillota, Pseudomonadota and Bacteroidota, which were consistent with those of the domestic goose, duck and chicken. The gut microbiota in diarrheic Baer's pochard is low in diversity, and the species were also significantly different from healthy individuals. Most species in reduced numbers are thought to be intestinal beneficial bacteria.
Threats and protection
Baer's pochard was once a common species in its range, but is now very rare. Mature individuals may be less than 1,000. According to records in China, there were 16,792 wintering individuals from 1986/87 to 1992/93, but only 3,472 from 1993/94 to 1998/99, and only 2,131 from 2002/03 to 2010/11. Bangladesh had more than 3,000 in 1996, India had more than 1,400 in 1995 and 1997, Myanmar had about 500-1,000 in the 1990s, and 596 were counted in 1998 in Thailand. While by 1999/00-2004/05, only 719 were counted in all wintering grounds except China, and only 48 individuals in 2005/06-2010/11. In China, hunting and habitat loss were considered to be the main threats. From 336 to 4,803 pochards were hunted annually in Honghu, Hubei from 1981 to 1997; in areas near Rudong County, maybe 3,000 are hunted every year. The wintering grounds have been significantly changed due to water pollution, fishing management, changes in aquatic plants, and the changing ecology of many wetlands in the Yangtze River floodplain. Factors in breeding and migrating grounds may also have contributed to its decline. The global decline shows no sign of slowing or stopping.
Baer's pochard was formerly classified as a vulnerable species by the IUCN. Recent research has shown that its numbers are decreasing more and more rapidly, and it was consequently uplisted to endangered status in 2008. In 2012, it was further uplisted to critically endangered. In 2014, the East Asian–Australasian Flyway Partnership (EAAFP) drafted the Baer's Pochard Task Force and it was endorsed in Jan 2015. Baer's pochard was listed as a first-class protected animal in China by 2021. In 2022, media reports state that the first captive population in China was established in the Beijing Zoo, with totally 54 individuals. It is planned to be further expanded and used for reintroduction.
A study published in 2022 showed that most breeding sites (81.8%) and suitable habitats (94%) are not located in protected areas, and overlap with large cities. Current protected areas may be less effective for the conservation under predicted global climate change, closely coordinated cross-border cooperation would be critical for Baer's pochard
Åhhh... dessa breda dragkedjor - så otroligt sexiga och läckra - visst ser hon tuff och cool ut på samma gång?
The budgerigar (Melopsittacus undulatus), also known as the common parakeet, shell parakeet or budgie (/ˈbʌdʒi/ BUJ-ee), is a small, long-tailed, seed-eating parrot. Budgies are the only species in the genus Melopsittacus. Naturally, the species is green and yellow with black, scalloped markings on the nape, back, and wings.[5] Budgies are bred in captivity with colouring of blues, whites, yellows, greys, and even with small crests. Juveniles and chicks are monomorphic, while adults are told apart by their cere colouring, and their behaviour.
The species is the only member of the genus Melopsittacus, which is the only genus in the Melopsittacini tribe.
The origin of the budgerigar's name is unclear. First recorded in 1805, budgerigars are popular pets around the world due to their small size, low cost, and ability to mimic human speech. They are likely the third most popular pet in the world, after the domesticated dog and cat. Budgies are nomadic flock parakeets that have been bred in captivity since the 19th century. In both captivity and the wild, budgerigars breed opportunistically and in pairs.
They are found wild throughout the drier parts of Australia, where they have survived harsh inland conditions for over five million years. Their success can be attributed to a nomadic lifestyle and their ability to breed while on the move. The budgerigar is closely related to lories and the fig parrots.
Etymology
Pair of budgerigars
Several possible origins for the name budgerigar have been proposed. One origin could be that budgerigar may be a mispronunciation or alteration of the Gamilaraay word gidjirrigaa (Aboriginal pronunciation: [ɡ̊iɟiriɡaː]) or gijirragaa from the Yuwaalaraay. Another possible origin is that budgerigar might be a modified form of budgery or boojery (Australian English slang for "good") and gar ("cockatoo"). While many references mention "good" as part of the meaning, and a few specify "good bird", it is quite possible that reports by those local to the region are more accurate in specifying the direct translation as "good food".
Alternative spellings include budgerygah and betcherrygah, the latter used by Indigenous people of the Liverpool Plains in New South Wales.
Alternative names for the budgerigar include the shell parrot or shell parakeet, the warbling grass parakeet, the canary parrot, the zebra parrot, the flight bird, and the scallop parrot. Although more often used as a common name for small parrots in the genus Agapornis, the name "lovebird" has been used for budgerigars, because of their habit of close perching and mutual preening, and their long term pair-bonds.
Taxonomy
Evolutionary history
parrots
Lories and lorikeets
Budgerigar
Fig parrots
genera Cyclopsitta & Psittaculirostris
... other parrots
Phylogenetic chart
The budgerigar was first described by George Shaw in 1805, and given its current binomial name by John Gould in 1840. The genus name Melopsittacus, from Ancient Greek, means "melodious parrot". The species name undulatus is Latin for "undulated" or "wave-patterned".
The budgerigar was once proposed to be a link between the genera Neophema and Pezoporus, based on the barred plumage. However, recent phylogenetic studies using DNA sequences place the budgerigar very close to the lories (tribe Loriini) and the fig parrots (tribe Cyclopsittini).
Description
Wild budgerigars average 18 cm (7 in) long,[6] weigh 30–40 grams (1.1–1.4 oz), 30 cm (12 in) in wingspan, and display a light green body colour (abdomen and rumps), while their mantles (back and wing coverts) display pitch-black mantle markings (blackish in fledglings and immatures) edged in clear yellow undulations. The forehead and face is yellow in adults. Prior to their adult plumage, young individuals have blackish stripes down to the cere (nose) in young individuals until around 3–4 months of age. They display small, iridescent blue-violet cheek patches and a series of three black spots across each side of their throats (called throat patches). The two outermost throat spots are situated at the base of each cheek patch. The tail is cobalt (dark-blue); and outside tail feathers display central yellow flashes. Their wings have greenish-black flight feathers and black coverts with yellow fringes along with central yellow flashes, which only become visible in flight or when the wings are outstretched. Bills are olive grey and legs blueish-grey, with zygodactyl toes.
In their natural Australian habitat, budgerigars are noticeably smaller than those in captivity. This particular parrot species has been bred in many other colours and shades in captivity (e.g. blue, grey, grey-green, pieds, violet, white, yellow-blue). Pet store individuals will commonly be blue, green, or yellow. Like most parrot species, budgerigar plumage fluoresces under ultraviolet light – a phenomenon possibly related to courtship and mate selection.
The upper half of their beaks is taller than the bottom half, covering the bottom when closed. The beak does not protrude much, due to the thick, fluffy feathers surrounding it, giving the appearance of a downward-pointing beak that lies flat against the face. The upper half acts as a long, smooth cover, while the bottom half is just about a half-sized cup-piece. These beaks allow the birds to eat plants, fruits, and vegetables.
The colour of the cere (the area containing the nostrils) differs between the sexes, being a lavender/baby blue in males, pale brownish/white (non breeding) to brown (breeding) in females, and pink in immature birds of both sexes (usually of a more even purplish-pink colour in young males). Some female budgerigars develop brown cere only during breeding time, which later returns to the normal colour. Young females can often be identified by a subtle, chalky whiteness that starts around the nostrils. Males that are either albino, lutino, dark-eyed clear or recessive pied (Danish pied or harlequin) retain the immature purplish-pink cere colour for their entire lives.
Behaviours and head shape also help indicate sex. Veterinarians can determine the sex of a bird by invasive examination or samples of blood, feather, or eggshell.
Mature males usually have a cere of light to dark blue, but in some particular colour mutations it can be periwinkle, lavender, purplish or pink – including dark-eyed clears, Danish pieds (recessive pieds) and inos, which usually display much rounder heads. The behaviour of males can distinguish them from females. Males are typically cheerful, extroverted, highly flirtatious, peacefully social, and very vocal.
Female ceres are pinkish while immature. As they age, they move from being beigeish or whitish outside breeding condition into brown (often with a 'crusty' texture) in breeding condition and usually display flattened backs of heads (right above the nape). Females are more dominant and less socially tolerant. This behavior is more pronounced around other females than with males.
Budgerigars have tetrachromatic colour vision, although all four classes of cone cells will not operate simultaneously unless under sunlight or a UV lamp. The ultraviolet spectrum brightens their feathers to attract mates. The throat spots in budgerigars reflect UV and can be used to distinguish individual birds. While ultraviolet light is essential to the good health of caged and pet birds, inadequate darkness or rest results in overstimulation.
Ecology
Budgerigars are nomadic and flocks move on from sites as environmental conditions change. Budgerigars are found in open habitats, primarily in scrublands, open woodlands, and grasslands of Australia. The birds are normally found in small flocks, but can form very large flocks under favourable conditions. The nomadic movement of the flocks is tied to the availability of food and water. Budgerigars have two distinct flight speeds which they are capable of switching between depending on the circumstance. Drought can drive flocks into more wooded habitat or coastal areas. They feed on the seeds of spinifex and grass, and sometimes ripening wheat.
Outside of Australia, the only long-term establishment of naturalised feral budgerigars is a large population near St. Petersburg, Florida. Increased competition for nesting sites from European starlings and house sparrows is thought to be a primary cause of the Florida population declining from the 1980s. The more consistent, year-round conditions in Florida significantly reduced their nomadic behaviour.
The species has been introduced to various locations in Puerto Rico and the United States.
Budgerigars feed primarily on grass seeds. The species also opportunistically depredates growing cereal crops and lawn grass seeds.[35] Due to the low water content of the seeds they rely on the availability of freshwater.
Behaviour
Breeding in the wild generally takes place between June and September in northern Australia and between August and January in the south, although budgerigars are opportunistic breeders and respond to rains when grass seeds become most abundant. Budgerigars are monogamous and breed in large colonies throughout their range. They show signs of affection to their flockmates by preening or feeding one another. Budgerigars feed one another by eating the seeds themselves, and then regurgitating it into their flockmate's mouth. Populations in some areas have increased as a result of increased water availability at farms. Nests are made in holes in trees, fence posts or logs lying on the ground; the four to six eggs are incubated for 18–21 days, with the young fledging about 30 days after hatching.
In the wild, virtually all parrot species require a hollow tree or a hollow log as a nest site. Because of this natural behaviour, budgerigars most easily breed in captivity when provided with a reasonable-sized nest box.
The eggs are typically one to two centimetres long and are pearl white without any colouration if fertile. Female budgerigars can lay eggs without a male partner, but these unfertilised eggs will not hatch. Females normally have a whitish tan cere; however, when the female is laying eggs, her cere turns a crusty brown colour. Certain female budgies may always keep a whitish tan cere or always keep a crusty brown cere regardless of breeding condition. A female budgerigar will lay her eggs on alternating days. After the first one, there is usually a two-day gap until the next. She will usually lay between four and eight eggs, which she will incubate (usually starting after laying her second or third) for about 21 days each. Females only leave their nests for very quick defecations, stretches and quick meals once they have begun incubating and are by then almost exclusively fed by their mate (usually at the nest's entrance). Females will not allow a male to enter the nest, unless he forces his way inside. Clutch size ranges from 6 to 8 chicks. Depending on the clutch size and the beginning of incubation, the age difference between the first and last hatchling can be anywhere from 9 to 16 days. At times, the parents may begin eating their own eggs due to feeling insecure in the nest box.
There is evidence of same-sex sexual behaviour amongst male budgerigars. It is originally hypothesised that they did this as a form of "courtship practice" so they were better breeding partners for females, however an inverse relationship exists between participation in same-sex behaviour and pairing success.
Chick health
Breeding difficulties arise for various reasons. Some chicks may die from diseases and attacks from adults. Other budgerigars (virtually always females) may fight over the nest box, attacking each other or a brood. Another problem may be the birds' beaks being under-lapped, where the lower mandible is above the upper mandible.
Most health issues and physical abnormalities in budgerigars are genetic. Care should be taken that birds used for breeding are active, healthy and unrelated. Budgerigars that are related or have fatty tumours or other potential genetic health problems should not be allowed to breed. Parasites (lice, mites, worms) and pathogens (bacteria, fungi and viruses), are contagious and thus transmitted between individuals through either direct or indirect contact. Nest boxes should be cleaned between uses.
Splay leg is a relatively common problem in baby budgerigars and other birds; one of the budgerigar's legs is bent outward, which prevents it from being able to stand properly and compete with the other chicks for food, and can also lead to difficulties in reproducing in adulthood. The condition is caused by young budgerigars slipping repeatedly on the floor of a nest box. It is easily avoided by placing a small quantity of a safe bedding or wood shavings in the bottom of the nest box. Alternatively, several pieces of paper may be placed in the box for the female to chew into bedding.
Development
Eggs take about 18–20 days before they start hatching. The hatchlings are altricial – blind, naked, unable to lift their head and totally helpless, and their mother feeds them and keeps them warm constantly. Around 10 days of age, the chicks' eyes will open, and they will start to develop feather down. The appearance of down occurs at the age for closed banding of the chicks.
They develop feathers around three weeks of age. (One can often easily note the colour mutation of the individual birds at this point.) At this stage of the chicks' development, the male usually has begun to enter the nest to help his female in caring and feeding the chicks. Some budgerigar females, however, totally forbid the male from entering the nest and thus take the full responsibility of rearing the chicks until they fledge.
Depending on the size of the clutch and most particularly in the case of single mothers, it may then be wise to transfer a portion of the hatchlings (or best of the fertile eggs) to another pair. The foster pair must already be in breeding mode and thus either at the laying or incubating stages, or already rearing hatchlings.
As the chicks develop and grow feathers, they are able to be left on their own for longer periods of time. By the fifth week, the chicks are strong enough that both parents will be comfortable in staying out of the nest more. The youngsters will stretch their wings to gain strength before they attempt to fly. They will also help defend the box from enemies, mostly with their loud screeching. Young budgerigars typically fledge (leave the nest) around their fifth week of age and are usually completely weaned between six and eight weeks old. However, the age for fledging, as well as weaning, can vary slightly depending on the age and the number of surviving chicks. Generally speaking, the oldest chick is the first to be weaned. Although it is logically the last one to be weaned, the youngest chick is often weaned at a younger age than its older sibling(s). This can be a result of mimicking the actions of older siblings. Lone surviving chicks are often weaned at the youngest possible age as a result of having their parents' full attention and care.
Hand-reared budgies may take slightly longer to wean than parent-raised chicks. Hand feeding is not routinely done with budgerigars, due to their small size and because young parent raised birds can be readily tamed.
Relationship with humans
Aviculture
The budgerigar has been bred in captivity since the 1850s. Breeders have worked to produce a variety of colour, pattern and feather mutations, including albino, blue, cinnamon-ino (lacewing), clearwing, crested, dark, greywing, opaline, pieds, spangled, dilute (suffused) and violet.
"English budgerigars", more correctly called "show" or "exhibition budgerigars", are about twice as large as their wild counterparts and have puffier head feathers, giving them a boldly exaggerated look. The eyes and beak can be almost totally obscured by these fluffy head feathers. English budgerigars are typically more expensive than wild-type birds, and have a shorter life span of about seven to nine years. Breeders of English budgerigars show their birds at animal shows. Most captive budgerigars in the pet trade are more similar in size and body conformation to wild budgerigars.
Budgerigars are social animals and require stimulation in the shape of toys and interaction with humans or with other budgerigars. Budgerigars, and especially females, will chew material such as wood. When a budgerigar feels threatened, it will try to perch as high as possible and to bring its feathers close against its body in order to appear thinner.
Tame budgerigars can be taught to speak, whistle and play with humans. Both males and females sing and can learn to mimic sounds and words and do simple tricks, but singing and mimicry are more pronounced and better perfected in males. Females rarely learn to mimic more than a dozen words. Males can easily acquire vocabularies ranging from a few dozen to a hundred words. Pet males, especially those kept alone, are generally the best speakers.
Budgerigars will chew on anything they can find to keep their beaks trimmed. Mineral blocks (ideally enriched with iodine), cuttlebone and soft wooden pieces are suitable for this activity. Cuttlebones also supply calcium, essential for the proper forming of eggs and bone solidity. In captivity, budgerigars live an average of five to eight years, but life spans of 15–20 years have been reported. The life span depends on breed, lineage, and health, being highly influenced by exercise and diet. Budgerigars have been known to cause "bird fancier's lung" in sensitive people, a type of hypersensitivity pneumonitis. Apart from a handful of illnesses, diseases of the species are not transmittable to humans.
Colour mutations
Main article: Budgerigar colour genetics
All captive budgerigars are divided into two basic series of colours; namely, white-based (blue, grey and white) and yellow-based (green, grey-green and yellow). Presently, at least 32 primary mutations (including violet) occur, enabling hundreds of possible secondary mutations (stable combined primary mutations) and colour varieties (unstable combined mutations).
Mimicry
Main article: Talking bird
Male specimens of budgerigars can be skilled at mimicking human speech.
Puck, a male budgerigar owned by American Camille Jordan, holds the world record for the largest vocabulary of any bird, at 1,728 words. Puck died in 1994, with the record first appearing in the 1995 edition of Guinness World Records.
In 2001, recordings of a budgerigar called Victor got some attention from the media. Victor's owner, Ryan B. Reynolds of Canada, stated Victor was able to engage in contextual conversation and predict the future. Although some believe the animal was able to predict his own death as was claimed, further study on the subject is difficult without the bird. As of 2001, the recordings still remain to be verified by scientific analysis. Critics argue Victor's speech in the recordings is not coherent enough to be determined as spoken in context.
The budgerigar "Disco" became Internet famous in 2013. As of 2023, Disco had been viewed over 24,198,346 times on his YouTube channel. Some of Disco's most repeated phrases included, "I am not a crook" and "Nobody puts baby bird in a corner!". Disco died in 2017.
In popular culture
Small bathing suits for men, commonly referred to as togs or "Speedos", are informally called "budgie smugglers" in Australia. The phrase is humorously based on the appearance of the tight-fitting cloth around the male's genitals looking like a small budgie. The phrase was officially added to the Oxford English Dictionary in 2016
There have been reports of Laboratory Bred Killer Pigeons escaping from their secure cages in Cardiff. That is why this girl has stopped her sketching to keep her eye on the pigeon in front.
Candid captured in Cardiff Bay, Wales.
A brick is a block made of clay burnt in a kiln. It is one of the primary building materials known to mankind. Over time, bricks have appeared, gained prominence, lost importance and then come to the forefront again with various styles of architecture. Burnt bricks were used in ancient Indian, Babylon, Egypt and Roman civilizations. They are still being used as filler materials for framework structures as well as to construct load bearing structures. Down the ages, there have been various interesting historic and cultural references to bricks.
Brick kiln labourers form a large portion of workers in the informal sector in India. Workers, who are usually from the poorest sections of Indian society, are recruited against a loan by labour contractor or employer, which they have to repay by working for them. However, as they lose control over the debt and cannot leave until the employer decides when it’s paid off, they cannot realistically leave the ‘employment’. They are bonded labours.
The working and living conditions are sometimes extremely harsh. As workers usually live within the kiln, there are high levels of hazardous substances such as arsenic, burnt plastic and dust. Workers, including children, are frequently injured at work. The average working day consists of 15-16 hours and the great majority of children do not attend school or have any play time. The accommodation is usually overcrowded, commonly with several families living together in one single room, with outdoor toilets.
Kiln workers have little or no knowledge of their basic rights, entitlements and bonded labour prohibitions. Being from the most vulnerable segments of society and lacking organisation, bonded labourers remain “invisible” to the authorities.