Canada Goose (Branta canadensis) & Egyptian Geese (Alopochen aegyptiaca)
[order] Anseriformes | [family] Anatidae | [latin] Alopochen aegyptiacus | [UK] Egyptian Goose | [FR] Ouette d'Égypte | [DE] Nilgans | [ES] Oca del Nilo | [IT] Oca egiziana | [NL] Nijlgans | [IRL] Gé ghiúrainn
Measurements
spanwidth min.: 130 cm
spanwidth max.: 145 cm
size min.: 63 cm
size max.: 73 cm
Breeding
incubation min.: 28 days
incubation max.: 30 days
fledging min.: 70 days
fledging max.: 75 days
broods 1
eggs min.: 7
eggs max.: 10
Status: Local winter visitor from Greenland, occurring in Ireland between October & April.
Conservation Concern: Amber-listed in Ireland as the majority winter at less than ten sites. The European population is considered to be Secure.
Identification: Small compact goose, with small rounded head and short black bill. It has a black neck and breast and mostly-white head, barred grey upperparts and pale underparts. Identified in flight by a strong contrast between the black breast and the whitish belly.
Similar Species: Other goose species, such as Brent Goose.
Call: High-pitched monosyllabic shrill or bark.
Diet: Primarily grazers, feeding on grasses and sedges on the tundra during the breeding season, and on coastal pastures during the winter.
Breeding: Irish Barnacle Geese breed in Greenland. The species also breeds in Siberia, as well as in increasing numbers around the Baltic Sea.
Wintering: Winters in western Scotland and Ireland. Mostly on remote islands in the northwest Ireland and western Scotland where it is relatively free from disturbance. Highly gregarious.
Where to See: The most important sites are the Inishkea Islands in County Mayo and Ballintemple in County Sligo, each supporting over 2,500 birds. Trawbreaga Bay in County Donegal, Malin Head in County Donegal and Rathlin O’Birne in County Donegal also support relatively large flocks (usually 500-800 birds).
Physical characteristics
Egyptian geese have long necks, long pink legs, a pink bill and brown eye patches encircling each eye. They are distinguished from closely related species by a brown patch in the middle of the chest. The upper wings and the head are brown, while the rest of the body is light brown. The underside of the wings is white and green. Juveniles do not have the brown eye patches or a patch on the chest. Egyptian geese are anywhere from 63 to 73 cm in height and they can weigh from 1.5 to 2.3 kg. The wingspan is fairly large, measuring 38 cm, on average.
Distinguishing between males and females can be a challenge. The females are smaller than the males, but otherwise both sexes look alike. One way to tell them apart is by their sound. Males make a raspy hiss, while females produce a cackling sound. Although they are not terribly vocal, when they are feeling aggressive or stressed they will make a great deal of noise.
These geese stay together in small flocks throughout the year, mainly for protection. Egyptian geese pair up during the breeding season, but otherwise they remain in their flocks. Although they are mainly sedentary, they move to another body of water if a period of drought occurs in their current home range. They may wander from the water during the day in search of food in either the grasslands or agricultural fields. They always return to the water at night.
Habitat
Egyptian geese will not populate densely wooded areas, though they can be found in meadows, grasslands, and agricultural fields. Most of their time is spent in rivers, streams, lakes, ponds and wetlands. They can be found as high as 4000 m.
Other details
Alopochen aegyptiaca is widely distributed throughout its native range, Africa, and southern Europe. It is especially common in southern Africa, below the Sahara and in the Nile Valley. In the 18th century, Alopochen aegyptiaca was introduced into Great Britain, and a substantial population still thrives there today. Currently Alopochen aegyptiaca is colonizing the Netherlands, Belgium, and Germany.
Introduced 18th century in West Europe, the range of feral (returned to wild) population has increased in recent years. Breeds ferally also in Netherlands since 1970s and Belgium since 1982, with a few pairs in France and Germany. Birds seen sporadically elsewhere in Europe also regarded as of captive origin, though some older southern records perhaps wild birds, as former breeding range uncertain. Occasional records in Israel, where perhaps bred formerly. Formerly scarce winter visitor to Cyprus, and has occasionally wintered Tunisia and Algeria.
Feeding
Egyptian geese are mainly herbivores, they eat young grass from grasslands or savannahs, grains (particularly wheat) from agricultural fields, and soft vegetation like leaves and other detritus. Many tend to forage away from the water in pastures or arable land. Part of their diet includes a wide variety of small insects, terrestrial worms and frogs that live in nearby ponds.
Conservation
This species has a large range, with an estimated global Extent of Occurrence of 19,000,000 km². It has a large global population estimated to be 210,000-530,000 individuals (Wetlands International 2002). Global population trends have not been quantified, but the species is not believed to approach the thresholds for the population decline criterion of the IUCN Red List (i.e. declining more than 30% in ten years or three generations). For these reasons, the species is evaluated as Least Concern. [conservation status from birdlife.org]
Breeding
The males are quite aggressive when mating. Each male performs a noisy and elaborate courtship display, emitting unusually loud honking noises. Under normal circumstances, Egyptian geese are reserved, quiet animals, but during mating season they are just the opposite. A male will act in this manner in order to attract a female. Since Egyptian geese are monogamous, one male and one female nest alone in dense vegetation, holes, or simply on the ground.
Egyptian geese breed in the spring or at the end of the dry season (The breeding season is anywhere from July to March, depending on the area). At the age of two, Alopochen aeygptiacus reach sexual maturity. Nest locations are usually near water for safety and near grassland for feeding; the nests are made out of feathers and vegetation and are located in dense vegetation, holes, or simply on the ground. Pairs sometimes find nests on the ground or use deserted nests of other larger bird species (such as Buteo buteo (common buzzard) or Pica pica (black-billed magpie)), which can be located in trees or on high ledges. The male goose fertilizes the female internally. Five to twelve eggs are laid, and they are incubated for 28 to 30 days. The young fledge in 70 days. Incubation lasts from 28 to 30 days and is done by both parents. The father protects the eggs and chicks, while the mother guides them and keeps them close to her.
Canada Goose (Branta canadensis) & Egyptian Geese (Alopochen aegyptiaca)
[order] Anseriformes | [family] Anatidae | [latin] Alopochen aegyptiacus | [UK] Egyptian Goose | [FR] Ouette d'Égypte | [DE] Nilgans | [ES] Oca del Nilo | [IT] Oca egiziana | [NL] Nijlgans | [IRL] Gé ghiúrainn
Measurements
spanwidth min.: 130 cm
spanwidth max.: 145 cm
size min.: 63 cm
size max.: 73 cm
Breeding
incubation min.: 28 days
incubation max.: 30 days
fledging min.: 70 days
fledging max.: 75 days
broods 1
eggs min.: 7
eggs max.: 10
Status: Local winter visitor from Greenland, occurring in Ireland between October & April.
Conservation Concern: Amber-listed in Ireland as the majority winter at less than ten sites. The European population is considered to be Secure.
Identification: Small compact goose, with small rounded head and short black bill. It has a black neck and breast and mostly-white head, barred grey upperparts and pale underparts. Identified in flight by a strong contrast between the black breast and the whitish belly.
Similar Species: Other goose species, such as Brent Goose.
Call: High-pitched monosyllabic shrill or bark.
Diet: Primarily grazers, feeding on grasses and sedges on the tundra during the breeding season, and on coastal pastures during the winter.
Breeding: Irish Barnacle Geese breed in Greenland. The species also breeds in Siberia, as well as in increasing numbers around the Baltic Sea.
Wintering: Winters in western Scotland and Ireland. Mostly on remote islands in the northwest Ireland and western Scotland where it is relatively free from disturbance. Highly gregarious.
Where to See: The most important sites are the Inishkea Islands in County Mayo and Ballintemple in County Sligo, each supporting over 2,500 birds. Trawbreaga Bay in County Donegal, Malin Head in County Donegal and Rathlin O’Birne in County Donegal also support relatively large flocks (usually 500-800 birds).
Physical characteristics
Egyptian geese have long necks, long pink legs, a pink bill and brown eye patches encircling each eye. They are distinguished from closely related species by a brown patch in the middle of the chest. The upper wings and the head are brown, while the rest of the body is light brown. The underside of the wings is white and green. Juveniles do not have the brown eye patches or a patch on the chest. Egyptian geese are anywhere from 63 to 73 cm in height and they can weigh from 1.5 to 2.3 kg. The wingspan is fairly large, measuring 38 cm, on average.
Distinguishing between males and females can be a challenge. The females are smaller than the males, but otherwise both sexes look alike. One way to tell them apart is by their sound. Males make a raspy hiss, while females produce a cackling sound. Although they are not terribly vocal, when they are feeling aggressive or stressed they will make a great deal of noise.
These geese stay together in small flocks throughout the year, mainly for protection. Egyptian geese pair up during the breeding season, but otherwise they remain in their flocks. Although they are mainly sedentary, they move to another body of water if a period of drought occurs in their current home range. They may wander from the water during the day in search of food in either the grasslands or agricultural fields. They always return to the water at night.
Habitat
Egyptian geese will not populate densely wooded areas, though they can be found in meadows, grasslands, and agricultural fields. Most of their time is spent in rivers, streams, lakes, ponds and wetlands. They can be found as high as 4000 m.
Other details
Alopochen aegyptiaca is widely distributed throughout its native range, Africa, and southern Europe. It is especially common in southern Africa, below the Sahara and in the Nile Valley. In the 18th century, Alopochen aegyptiaca was introduced into Great Britain, and a substantial population still thrives there today. Currently Alopochen aegyptiaca is colonizing the Netherlands, Belgium, and Germany.
Introduced 18th century in West Europe, the range of feral (returned to wild) population has increased in recent years. Breeds ferally also in Netherlands since 1970s and Belgium since 1982, with a few pairs in France and Germany. Birds seen sporadically elsewhere in Europe also regarded as of captive origin, though some older southern records perhaps wild birds, as former breeding range uncertain. Occasional records in Israel, where perhaps bred formerly. Formerly scarce winter visitor to Cyprus, and has occasionally wintered Tunisia and Algeria.
Feeding
Egyptian geese are mainly herbivores, they eat young grass from grasslands or savannahs, grains (particularly wheat) from agricultural fields, and soft vegetation like leaves and other detritus. Many tend to forage away from the water in pastures or arable land. Part of their diet includes a wide variety of small insects, terrestrial worms and frogs that live in nearby ponds.
Conservation
This species has a large range, with an estimated global Extent of Occurrence of 19,000,000 km². It has a large global population estimated to be 210,000-530,000 individuals (Wetlands International 2002). Global population trends have not been quantified, but the species is not believed to approach the thresholds for the population decline criterion of the IUCN Red List (i.e. declining more than 30% in ten years or three generations). For these reasons, the species is evaluated as Least Concern. [conservation status from birdlife.org]
Breeding
The males are quite aggressive when mating. Each male performs a noisy and elaborate courtship display, emitting unusually loud honking noises. Under normal circumstances, Egyptian geese are reserved, quiet animals, but during mating season they are just the opposite. A male will act in this manner in order to attract a female. Since Egyptian geese are monogamous, one male and one female nest alone in dense vegetation, holes, or simply on the ground.
Egyptian geese breed in the spring or at the end of the dry season (The breeding season is anywhere from July to March, depending on the area). At the age of two, Alopochen aeygptiacus reach sexual maturity. Nest locations are usually near water for safety and near grassland for feeding; the nests are made out of feathers and vegetation and are located in dense vegetation, holes, or simply on the ground. Pairs sometimes find nests on the ground or use deserted nests of other larger bird species (such as Buteo buteo (common buzzard) or Pica pica (black-billed magpie)), which can be located in trees or on high ledges. The male goose fertilizes the female internally. Five to twelve eggs are laid, and they are incubated for 28 to 30 days. The young fledge in 70 days. Incubation lasts from 28 to 30 days and is done by both parents. The father protects the eggs and chicks, while the mother guides them and keeps them close to her.