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The Chinese and African Geese are the domestic breeds of the swan goose (A. cygnoides); they can be recognized by their prominent bill knob. [ 1 ] Some breeds, like the Obroshin Goose and Steinbach Fighting Goose , originated in hybrids between these species (the hybrid males are usually fertile – see Haldane's Rule ).
In 2000, the North American population of the geese was estimated to be between 4 million and 5 million birds. [93] 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.
A goose (pl.: geese) is a bird of any of several waterfowl species in the family Anatidae. This group comprises the genera Anser (grey geese and white geese) and Branta (black geese). Some members of the Tadorninae subfamily (e.g., Egyptian goose, Orinoco goose) are commonly called geese, but are not considered "true geese" taxonomically. [1]
Geese have also been strongly selected for fecundity, with females laying up to 500 eggs per year, compared to 5–12 eggs for a wild goose. [3] [5] As most domestic geese display little sexual dimorphism, sexing is based primarily on physical characteristics and behaviour. Males are typically taller and larger than females, and have longer ...
A pair of snow geese calling. The snow goose (Anser caerulescens) is a species of goose native to North America. Both white and dark morphs exist, the latter often known as blue goose. Its name derives from the typically white plumage. The species was previously placed in the genus Chen, but is now typically included in the "gray goose" genus ...
Adult geese are often seen leading their goslings in a line with one parent at the front, and the other at the back of the "parade". Like most geese, the cackling goose is naturally migratory, with their overwintering range being most of the U.S. (locally in Western Canada, the West Coast of the U.S. and northern Mexico). The calls overheard ...
Midcontinental white-fronted geese in North America have many breeding areas and each group in each breeding area differs in its migration time and wintering location. There are six breeding areas, including interior Alaska, the North Slope of Alaska, western Northwest Territories , western Nunavut , central Nunavut, and eastern Nunavut.
Anser is a waterfowl genus that includes the grey geese and the white geese.It belongs to the true goose and swan subfamily of Anserinae under the family of Anatidae. [2] The genus has a Holarctic distribution, with at least one species breeding in any open, wet habitats in the subarctic and cool temperate regions of the Northern Hemisphere in summer.