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Gesture, attitude, behaviour : a workshop with dancers Mauro Paccagnella and Alessandro Bernardeschi on march 6, 2007 at Erg (Ecole de Recherche Graphique, Brussels) for bachelor 1 students. Professors : Sabine Voglaire and Marc Wathieu. Pictures by Yves André.
Gesture, attitude, behaviour : a workshop with dancers Mauro Paccagnella and Alessandro Bernardeschi on march 6, 2007 at Erg (Ecole de Recherche Graphique, Brussels) for bachelor 1 students. Professors : Sabine Voglaire and Marc Wathieu. Pictures by Yves André.
Grappig te zien dat ook steeds meer oudere mensen een teenage gedrag krijgen met hun eeuwige mobieltje
Yellow-billed stork
Geelbek ooievaar
Nimmersat
(Mycteria ibis)
The yellow-billed stork (Mycteria ibis), sometimes also called the wood stork or wood ibis, is a large African wading stork species in the family Ciconiidae. It is widespread in regions south of the Sahara and also occurs in Madagascar.
The yellow-billed stork is closely related to 3 other species in the genus Mycteria: the American woodstork (Mycteria americana), the milky stork (Mycteria cinerea) and the painted stork (Mycteria leucocephala). It is classified as belonging to one clade with these 3 other species because they all display remarkable homologies in behavior and morphology. In one analytical study of feeding and courtship behaviours of the wood-stork family, M.P. Kahl attributed the same general ethology to all members of the genus Mycteria, with few species-specific variations. These four species are collectively referred to as the wood-storks, which should not be confused with one alternative common name (wood-stork) for the yellow-billed stork.
Before it was established that the yellow-billed stork was closely related to the American woodstork, the former was classified as belonging to the genus Ibis, together with the milky stork and painted stork. However, the yellow-billed stork has actually long been recognised as a true stork and along with the other 3 related stork species, it should not strictly be called an ibis.
It is a medium-sized stork standing 90–105 cm (35–41 in) tall. The body is white with a short black tail that is glossed green and purple when freshly moulted. The bill is deep yellow, slightly decurved at the end and has a rounder cross-section than in other stork species outside the Mycteria. Feathers extend onto the head and neck just behind the eyes, with the face and forehead being covered by deep red skin. Both sexes are similar in appearance, but the male is larger and has a slightly longer heavier bill. Males and females weigh approximately 2.3 kg (5.1 lb) and 1.9 kg (4.2 lb) respectively.
Colouration becomes more vivid during the breeding season. In the breeding season, the plumage is coloured pink on the upperwings and back; the ordinarily brown legs also turn bright pink; the bill becomes a deeper yellow and the face becomes a deeper red.
Juveniles are greyish-brown with a dull, partially bare, orange face and a dull yellowish bill. The legs and feet are brown and feathers all over the body are blackish-brown. At fledging, salmon-pink colouration in the underwings begins to develop and after about one year, the plumage is greyish-white. Flight feathers on the tail and wing also become black. Later, the pink colouration typical of adult plumage begins to appear.
These storks walk with a high-stepped stalking gait on the ground of shallow water and their approximate walking rate has been recorded as 70 steps per minute. They fly with alternating flaps and glides, with the speed of their flaps averaging 177–205 beats per minute.They usually flap only for short journeys and often fly in a soaring and gliding motion over several kilometres for locomotion between breeding colonies or roosts and feeding sites. By soaring on thermals and gliding by turns, they can cover large distances without wasting much energy. On descending from high altitudes, this stork has been observed to dive deeply at high speeds and flip over and over from side to side, hence showing impressive aerobatics. It even appears to enjoy these aerial stunts.
This species is generally non-vocal, but utters hissing falsetto screams during social displays in the breeding season. These storks also engage in bill clattering and an audible “woofing” wing beat at breeding colonies Nestlings make a loud continual monotonous braying call to beg parental adults for food.
The yellow-billed stork occurs primarily in Eastern Africa, but is widely distributed in areas extending from Senegal and Somalia down to South Africa and in some regions of western Madagascar. During one observation of a mixed species bird colony on the Tana River in Kenya, it was found to be the commonest species there, with 2000 individuals being counted at once.
It does not generally migrate far, at least not out of its breeding range; but usually makes short migratory movements which are influenced by rainfall. It makes local movements in Kenya and has also been found to migrate from North to South Sudan with the rainy season It may also migrate regularly to and from South Africa. However, little is actually known about this bird’s general migratory movements. Due to apparent observed variation in migratory patterns throughout Africa, the yellow-billed stork has been termed a facultative nomad. It may migrate simply to avoid areas where water or rainfall conditions are too high or too low for feeding on prey. Some populations migrate considerable distances between feeding or breeding sites; usually by using thermals to soar and glide. Other local populations have been found to be sedentary and remain in their respective habitats all year round.
Its preferred habitats include wetlands, shallow lakes and mudflats, usually 10–40 cm deep but it usually avoids heavily forested regions in central Africa. It also avoids flooded regions and deep expansive bodies of water because feeding conditions there are unsuitable for their typical grope and stir feeding techniques.
This species breeds especially in Kenya and Tanzania. Although it is known to breed in Uganda, breeding sites have not been recorded there. It has been found to breed also in Malakol in Sudan and often inside walled cities in West Africa from Gambia down to northern Nigeria. Still other breeding sites include Zululand in South Africa and northern Botswana,[12] but are rarer below northern Botswana and Zimbabwe where sites are well-watered. Although there is no direct evidence of current breeding in Madagascar, young birds unable to fly have been observed near Lake Kinkony during October.
Their diet comprises mainly small, freshwater fish of about 60-100mm length and maximally 150g, which they swallow whole. They also feed on crustaceans, worms, aquatic insects, frogs and occasionally small mammals and birds.
This species appears to rely mainly on sense of touch to detect and capture prey, rather than by vision. They feed patiently by walking through the water with partially open bills and probe the water for prey. Contact of the bill with a prey item is followed by a rapid snap-bill reflex, whereby the bird snaps shut its mandibles, raises its head and swallows the prey whole. The speed of this reflex in the closely related American woodstork (Mycteria americana) has been recorded as 25 milliseconds and although the corresponding reflex in the yellow-billed stork has not been quantitatively measured, the yellow-billed stork’s feeding mechanism appears to be at least qualitatively identical to that of the American woodstork.
In addition to the snap-bill reflex, the yellow-billed stork also uses a systematic foot stirring technique to sound out evasive prey. It prods and churns up the bottom of the water as part of a “herding mechanism” to force prey out of the bottom vegetation and into the bird’s bill. The bird does this several times with one foot before bringing it forwards and repeating with the other foot. Although they are normally active predators, they have also been observed to scavenge fish regurgitated by cormorants.
The yellow-billed stork has been observed to follow moving crocodiles or hippopotami through the water and feed behind them, appearing to take advantage of organisms churned up by their quarry. Feeding lasts for only a short time before the bird obtains its requirements and proceeds to rest again.
Parents feed their young by regurgitating fish onto the nest floor, whereupon it is picked up and consumed by the nestlings. The young eat voraciously and an individual nestling increases its body weight from 50 grams to 600 grams during the first ten days of its life. Hence, this species has earned the German colloquial common name “Nimmersatt”; meaning “never full”.
Breeding is seasonal and appears to be stimulated by the peak of long heavy rainfall and resultant flooding of shallow marshes, usually near Lake Victoria. This flooding is linked to an increase in prey fish availability; and reproduction is therefore synchronised with this peak in food availability. In such observations near Kisumu, M.P. Kahl’s explanation for this trend was that in the dry season, most prey fish are forced to leave the dried-up, deoxygenated marshes that cannot support them and retreat to the deep waters of Lake Victoria where the storks cannot reach them. However, fish move back up the streams on the onset of rain and spread out over the marshes to breed, where they become accessible to the storks. By nesting at this time and providing that the rains do not end pre-maturely, the storks are guaranteed a plentiful food supply for their young.
The yellow-billed stork may also begin nesting and breeding at the end of long rains. This occurs especially on flat extensive marshlands as water levels gradually decrease and concentrate fish sufficiently for the storks to feed on. However, unseasonal rainfall has also been reported to induce off-season breeding in northern Botswana and western and eastern Kenya. Rainfall may cause local flooding and hence ideal feeding conditions. This stork appears to breed simply when rainfall and local flooding are optimal and hence seems to be flexible in its temporal breeding pattern, which varies with rainfall pattern throughout the African continent.
As with all stork species, male yellow-billed storks select and occupy potential nest sites in trees, whereupon females attempt to approach the males. The yellow-billed stork has an extensive repertoire of courtship behaviours near and at the nest that may lead to pair formation and copulation. Generally, these courtship behaviours are also assumed to be common to all Mycteria species and show remarkable homology within the genus Mycteria. After the male has initially established at the nesting-site and the female begins to approach, he displays behaviours that advertise himself to her. One of these is the Display Preening, whereby the male pretends to strip down each of his extended wings with the bill several times each side and the bill does not effectively close around the feathers. Another observed display among males is the Swaying-Twig Grasping. Here, the male stands on the potential nesting-site and bends over to gently grasp and release underlying twigs at regular intervals. This is sometimes accompanied by side-to-side oscillations of the neck and head and he continues to pick at twigs in between such movements.
Reciprocally, approaching females display their own distinct behaviours. One such behaviour is the Balancing Posture, whereby she walks with a horizontal body axis and extended wings toward the male occupying the nesting-site. Later, when the female continues to approach or already stands near an established male, she may also engage in Gaping. Here, the bill is gaped open slightly with the neck inclined upward at about 45o . and often occurs in conjunction with the Balancing-Posture. This behaviour ordinarily continues if the male accepts the female and has allowed her to enter the nest, but the female usually closes her wings by this time. The male may also continue his Display-Preening when standing next to the female in the nest
During copulation, the male steps onto the female’s back from the side, hooks his feet over her shoulders, holds out his wings for balance and finally bends his legs to lower himself for cloacal contact, as happens in most birds. In turn, the female holds out her wings almost horizontally. The process is accompanied by bill clattering from the male as he regularly opens and closes his mandibles and vigorously shakes his head to beat his bill against the female’s. In turn, the female keeps her bill horizontal with the male’s or inclined downward at approximately 45 degrees.] Average copulation time in this species has been calculated as 15.7 seconds.
The male and female build the nest together either in high trees on dry land away from predators, or in small trees over water. Nest building takes up to 10 days. The nest may be 80–100 cm in diameter and 20–30 cm thick. The female typically lays 2-4 eggs (usually 3) on alternate days[ and average clutch size has been recorded as 2.5. The male and female share duties to incubate the eggs, which takes up to 30 days. As in many other stork species, hatching is asynchronous (usually at 1- to 2-day intervals), so that the young in the brood differ considerably in body size at any one time. During food shortage, the smaller young are at risk of being outcompeted for food by their larger nest-mates.
Both parents share duties of guarding and feeding the young until the latter are about 21 days old. Thereafter, both parents forage to attend to the young’s intense food demands. Alongside parental feeding by regurgitation of fish, parents have also been observed to regurgitate water into the open bills of their nestlings, especially on hot days. This may aid the typical thermoregulatory strategy of the young (common to all stork species) to excrete dilute urine down their legs in response to hot weather. Water regurgitated over the young serves as a water supplement in addition to fluid in their food, so that they have sufficient water to continue urinating down their legs to avoid hyperventilation. Additionally, parents sometimes help keep the young cool by shading them with their open wings.
The nestlings usually fledge after 50–55 days of hatching and fly away from the nest. However, after leaving the nest for the first time, the offspring often return there to be fed by their parents and roost with them for another 1–3 weeks. It is also thought that individuals are not fully adult until 3 years old and despite lack of data, new adults are thought to not breed until much later than this.
Fledglings have also been observed to not differ considerably in their foraging and feeding strategies from adults. In one investigation, four adult, hand-reared yellow-billed storks kept in captivity showed typical grope-feeding and foot stirring shortly after they were introduced to bodies of water. Hence, this suggests that such feeding techniques in this species are innate.
These birds breed colonially, often alongside other species; but the yellow-billed stork is sometimes the only occupant species of a nesting site. A subset of up to 20 individuals may nest close together in any one part of a colony; with several males occupying potential nest sites all in the same place. If many of these males do not acquire mates, the whole group moves on with the unpaired females to another tree. These “bachelor parties” are a noticeable feature of colonies of this species and usually consist of 12 or more males and at least as many females. As many as 50 nests have been counted all at once in a single breeding area.
Despite their gregariousness during breeding, most individuals generally ignore each other outside nesting-sites; although some hostile encounters may occur. Some of these encounters involve one individual showing an unambiguous attack or escape response if there is a large difference in social status between the two individuals. However, if two individuals are equally matched, they slowly approach each other and show a ritualised display called the Forward Threat. Here, one individual holds its body forward horizontally and retracts the neck so that it touches the crown, with the tail cocked at 45 degrees and all feathers erect. It approaches the opponent and points its bill at it, sometimes gaping. If the opponent does not capitulate, the attacker may grab at it with its bill and the two may briefly spar with their bills until one retreats in an erect stance with compressed plumage.
Hostility can also arise between opposite sexes when a female approaches a male on a potential nest site. Both sexes may display a similar aforementioned Forward Threat, but clatter their bills after grabbing with them at the other stork and extend their wings to maintain balance. Another hostile behaviour between sexes is the Snap Display,whereby they snap horizontally with their bills while standing upright. This may occur during and immediately after pair formation, but subsides later in the breeding cycle as the male and female become familiar with each other and it eventually disappears.
Nestlings show remarkable behavioural transformations at 3 weeks of age. During the constant parental attendance before this time, the young show little fear or aggression in response to intruders (such as a human observer), but are found to merely crouch low and quietly in the nest. After this time, when both parents go foraging and leave the young in the nest, a nestling shows strong fear in response to an intruder. It either attempts to climb out of the nest to escape or acts aggressively toward the intruder.
WIkipedia
Gesture, attitude, behaviour : a workshop with dancers Mauro Paccagnella and Alessandro Bernardeschi on march 6, 2007 at Erg (Ecole de Recherche Graphique, Brussels) for bachelor 1 students. Professors : Sabine Voglaire and Marc Wathieu. Pictures by Yves André.
Even when onlookers are told that answers people gave in a test were randomly allocated, the impression of an individual’s performance persists and affects predictions about future performance.
(Ross, Lepper & Hubbard, 1975)
CC image courtesy of: www.flickr.com/photos/bright/69687519/
Thanks for stopping by my recent posts folks. I'm not able to shoot or get on Flickr much at the moment due to internet access problems as well as being busy - I'll try and catch up with you soon, and I'm still checking out your streams when I can even if I'm not always able to leave a comment. Keep up the good work!
Neal
Album Title: Exotic Behaviour
Model: 虹羚
Photographer: Edwin Setiawan
Place: 士林官邸
Date: 2009/07/12
Just about Photography: edwinsetiawan.wordpress.com
Edwin Setiawan Photography: www.edwinsetiawan.com
Gordon Brown during a reception for Community Crime Fighters Awards at Downing Street, 4 November 2009; Crown copyright
Emily Gore, Managing Partner of Instinctiv, introducing the Science of Response conference in London on 20 May 2014
was parked in my car waiting for people to walk across the pedestrian crossing so could photograph for crossing, and no body did, they all ran across the road only a few meters away.
dicey behaviour.
odc crossed (dangerously)
A rather remarkable (but apparently surprisingly well documented) bit of behaviour that had me very surprised. I was following this small colony of Strong-billed Honeyeaters as they were nest-building in a stand of tea-tree.
At one stage I lost the birds and was amazed to relocate it perched on the back of a pademelon! As a couple of minutes of watching proved, this bird was actually picking the soft fur off the back of this poor pademelon and then using it as the inner lining to its nest (to keep its eggs nice and softly protected). I could see as the pademelon hopped away that it had a couple of spots on its back where the fur was partially missing, so I suspect it was not a stranger to such activities.
This is full-frame with just the 300 at f2.8 which goes to show how dark and how close these animals were!
I came across this strange behaviour when I spotted a Sea cucumber standing upright in the current. At first I thought it has lifted off the reef and could'nt get back down but then I noticed there were more in the vacinity doing exactly the same thing. On closer inspection I realised they were spawning and managed this one shot clearly showing the release
Gesture, attitude, behaviour : a workshop with dancers Mauro Paccagnella and Alessandro Bernardeschi on march 6, 2007 at Erg (Ecole de Recherche Graphique, Brussels) for bachelor 1 students. Professors : Sabine Voglaire and Marc Wathieu. Pictures by Yves André.
Attachment theory describes several behavioural systems, the function of which is to regulate human attachment, fear, exploration, care-giving, peer-affiliation and sex. Attachment is defined as any form of behaviour that results in a person attaining and retaining proximity to a differentiated other. The primary caregiver is the source of the infants stress regulation and, therefore, sense of safety and security. Attachment theory emphasises the role of the parent as mediator, reflector and moderator of the childs mind and the childs reliance on the parent to respond to their affective states in ways that are contingent to their internal experience, a process often referred to as secure base/safe haven functioning. Within the close parent-child relationship neural networks dedicated to feelings of safety and danger, attachment and the core sense of self are sculpted and shaped. These networks are conceptualised as internal working models of attachment.
Characteristic patterns of interaction operating within the familys caregiving-attachment system give rise to secure, insecure and disorganized patterns of attachment. These discrete patterns have been categorized using the Strange Situation research procedure, which observes the young childs behaviour when separated and reunited with his or her primary caregiver. Attachment patterns are represented in the childs internal working models of self-other relationships. Secure attachment is promoted by the interactive regulation of affect, which facilitates the recognition, labelling and evaluation of emotional and intentional states in the self and in others, a capacity known as reflective function or mentalization. The recognition of affects as having dynamic, transactional properties is the key to understanding behaviour in oneself and in another. The child comes to recognize his or her mental states as meaningful self-states via a process of parental affect mirroring and marking. Secure children are able to use sophisticated cognitive strategies to integrate and resolve their fear of separation and loss.
When the parent is unavailable, inconsistent or unpredictable, the infant develops one of two organized insecure patterns of attachment: avoidant or ambivalent-resistant. These defensive strategies involve either the deactivation or hyper-activation of the attachment system. Deactivation is characterized by avoidance of the caregiver and by emotional detachment. In effect, the avoidant child immobilizes the attachment system by excluding thoughts and feelings that normally activate the system. Hyper-activation is manifested by an enmeshed ambivalent preoccupation with the caregiver and with negative emotions, particularly anger. However, in common with the avoidant child, the ambivalent child appears to cognitively disconnect feelings from the situation that elicited the distress. Disorganised-disoriented attachment is discussed below.
Attachment research, then, demonstrates that discrete patterns of secure, insecure, and disorganized attachment have as their precursor a specific pattern of caregiver-infant interaction and their own behavioural sequelae. Repeated patterns of interpersonal experience are encoded in implicit-procedural memory and conceptualized as self-other working models of attachment. These mental models consist of generalized beliefs and expectations about relationships between the self and key attachment figures, not the least of which concerns ones worthiness to receive love and care from others.
In sum, the care-giving environment generally, and the infant-caregiver attachment relationship particularly, initiate the child along one of an array of potential developmental pathways. Disturbance of attachment is the outcome of a series of deviations that take the child increasingly further from adaptive functioning. Child abuse and cumulative developmental trauma violate the childs sense of trust, identity and agency and have pernicious and seminal influences on the developing personality. In essence, internal working models of early attachment relationships provide the templates for psychopathology in later life, which may include violent, destructive and self-destructive forms of behaviour. In attachment theory, the main purpose of defence is the regulation of emotions. The primary mechanisms for achieving this are distance regulation and the defensive exclusion of thoughts and feelings associated with attachment trauma.
Early trauma in the form of abuse, loss, neglect and severe parent-child misattunement compromises brain-mediated functions such as attachment, empathy and affect regulation. From an attachment theory perspective, patterns of attachment are encoded and stored as generalized relational patterns in the systems of implicit memory. These are conceptualized as cognitive-affective internal working models which are seen as mediating how we think and feel about ourselves, others and the relationships we develop. Although open to change and modification in the light of new attachment experiences, whether positive or negative, these non-conscious procedural models, scripts or schemas within which early stress and trauma are retained, tend to persevere and guide, appraise and predict attachment-related thoughts, feelings and behaviours throughout the life cycle via the implicit memory system. Psychopathology is seen as deriving from an accumulation of maladaptive interactional patterns that result in character traits and personality types and disorders.
Disorganised attachment may occur when the childs parent is both the source of fear and the only protective figure to whom to turn to resolve stress and anxiety. In such instances, neither proximity seeking nor proximity avoiding is a solution to the activation of the childs attachment and fear behavioural systems. If the trauma remains unresolved and is carried into adulthood, it leaves the individual vulnerable to affect dysregulation in interpersonal conflict situations that induce fear, hate, shame and rage. In such cases, alcohol and illicit drugs are often resorted to as a maladaptive means of suppressing dreaded psychobiological states and restoring a semblance of affective equilibrium.
Findings show that disorganised attachment developed in infancy shifts to controlling behaviour in the older child and adult, reflecting an internalized mental model of the self as unlovable, unworthy of care and support, and fearful of rejection, betrayal and abandonment. Disorganised attachment is associated with a predisposition to relational violence, to dissociative states and conduct disorders in children and adolescents, and to personality disorders in adults. This state of mind constitutes a primary risk factor for the development of borderline, anti-social and sociopathic personality disorders. The rate of such disorders in forensic settings is particularly high. Clinically, dissociated traumatic experience is unsymbolized by thought and language, being encapsulated within the personality as a separate, non-reflective reality which is cut off from authentic human relatedness. The information contained in implicit memory may be retrieved by state-dependent moods and situations. Dissociated archaic internal working models are then activated, influencing and distorting expectations of current events and relationships outside of conscious awareness, particularly in situations involving intense interpersonal stress. In such situations, the self is felt to be endangered, thereby increasing the risk of an angry and potentially violent reaction.
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More shots from last Saturday at Barnes. This Little Grebe with one of his chicks was so happy to pose for us. He even seemed to be trying to communicate with us by nodding...
In this shot, he's doing the same but nodding at his chick.
Gesture, attitude, behaviour : a workshop with dancers Mauro Paccagnella and Alessandro Bernardeschi on march 6, 2007 at Erg (Ecole de Recherche Graphique, Brussels) for bachelor 1 students. Professors : Sabine Voglaire and Marc Wathieu. Pictures by Yves André.
photo:me
model:me
If you ever get close to a human
and human behaviour
be ready to get confused
there's definitely no logic
to human behaviour
but yet so irresistible
there is no map
to human behaviour
they're terribly moody
then all of a sudden turn happy
but, oh, to get involved in the exchange
of human emotions is ever so satisfying
there's no map and
a compass
wouldn't help at all