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Branta canadensis38 gözlem5 gözlemci · 1 ilGözlem haritasına git ↓Genel bilgi
Branta canadensis, Branta cinsine bağlı Kuzey Amerika'ya özgü bir hayvan türüdür.
Habitatı
, Washington state]] ]] This species is native to North America. It breeds in Canada and the northern United States in a wide range of habitats. The Great Lakes region maintains a large population of Canada geese. Canada geese live year-round in the southern part of their breeding range, including the northern half of the United States' eastern seaboard and Pacific Coast, and areas in between. Between California and South Carolina in the southern United States and in northern Mexico, Canada geese are mainly present as migrants from further north during the winter. , in Kulm Wetland Management District]] In 1964, the Northern Prairie Wildlife Research Center was built near Jamestown, North D…
Yayılışı
, Washington state]] ]] This species is native to North America. It breeds in Canada and the northern United States in a wide range of habitats. The Great Lakes region maintains a large population of Canada geese. Canada geese live year-round in the southern part of their breeding range, including the northern half of the United States' eastern seaboard and Pacific Coast, and areas in between. Between California and South Carolina in the southern United States and in northern Mexico, Canada geese are mainly present as migrants from further north during the winter. , in Kulm Wetland Management District]] In 1964, the Northern Prairie Wildlife Research Center was built near Jamestown, North D…
Beslenme
Canada geese are primarily herbivores, although they sometimes eat small insects and fish. Their diet includes green vegetation and grains. The Canada goose eats a variety of grasses when on land. It feeds by grasping a blade of grass with the bill, then tearing it with a jerk of the head. The Canada goose also eats beans and grains such as wheat, rice, and corn when they are available. In the water, it feeds from aquatic plants by sliding its bill at the bottom of the body of water. It also feeds on aquatic plant-like algae, such as seaweed.
Biyoloji
During the second year of their lives, Canada geese find a mate. They are monogamous, and most couples stay together all of their lives. If one dies, the other may find a new mate. The female lays from two to nine eggs with an average of five, and both parents protect the nest while the eggs incubate, but the female spends more time at the nest than the male. As the annual summer molt also takes place during the breeding season, the adults lose their flight feathers for 20–40 days, regaining flight about the same time as their goslings start to fly. As soon as the goslings hatch, they are immediately capable of walking, swimming, and finding their own food (a diet similar to that of adult g…
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Popülasyon
In 2000, the North American population of the geese was estimated to be between 4 million and 5 million birds. A 20-year study from 1983 to 2003 in Wichita, Kansas, found the size of the winter Canada goose population within the city limits increased from 1,600 to over 18,000 birds.
Davranış
, England]] Like most geese, the Canada goose is naturally migratory with the wintering range being most of the United States. The calls overhead from large groups of Canada geese flying in a V-shaped formation signal the transitions into spring and autumn. In some areas, migration routes have changed due to changes in habitat and food sources. In mild climates from southwestern British Columbia to California to the Great Lakes, some of the population has become nonmigratory due to adequate winter food supply and a lack of former predators. Males exhibit agonistic behavior both on and off breeding and nesting grounds. This behavior rarely involves interspecific killing. One documented case…
Ötüş
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Kaynaklar
- Branta canadensis — WikipediaWikimedia Foundation
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