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The Canada goose (Branta canadensis) is a large wild goose with a black head and neck, white cheeks, white under its chin, and a brown body. It is native to the arctic and temperate regions of North America, and it is occasionally found during migration across the Atlantic in northern Europe.
The Moffitt's Canada goose (Branta canadensis moffitti), also known as the Western Canada goose or Great Basin Canada Goose is a subspecies of the Canada goose.Native to the western interior of North America surrounding the Rocky Mountains, its range has expanded due to introductions to various regions of western North America.
Accurate age determination is of singu- lar importance if the success of the past breeding sea- son is to be estimated from age and sex ratios obtained from trapped biids prior to the hunting season. Studies conducted in preparation for an earUcr report (Han- son 1949:181-182), based on banded birds of known age, indicated there was a high ...
The black swan, Cygnus atratus is a large waterbird which breeds mainly in the southeast and southwest regions of Australia.An estimated one-quarter of all black swans pairings are homosexual and they steal nests, or form temporary threesomes with females to obtain eggs, driving away the female after she lays the eggs.
The Atlantic Canada goose is characterized as having a medium grey chest and warm brown wings and flanks. [1] It ranges in length from 90 to 100 cm (3 to 3.2 ft) and has a wingspan of 160 to 185 cm (5.2 to 6.1 ft).
Watch the Video. Click here to watch on YouTube. Many animals engage in elaborate mating rituals. For flight-ready birds, these often involve complex dance moves and peacock-like displays of grandeur.
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The dusky Canada goose (Branta canadensis occidentalis) is a subspecies of the Canada goose. They are the darkest variant, similar to the Pacific cackling goose. Tagged dusky geese have red bands with white letters on them attached to their neck. They represent one of the smallest populations of Canada goose in the Pacific Northwest. [2]