The Life of Animals | Canada Goose | The Canada Goose (Branta canadensis) is a wild goose belonging to the genus Branta, which is native to arctic and temperate regions of North America, having a black head and neck, white patches on the face, and a brownish-gray body. The Canada Goose was one of the many species described by Carl Linnaeus in his 18th-century work Systema Naturae It belongs to the Branta genus of geese, which contains species with largely black plumage, distinguishing them from the grey species of the Anser genus. The Cackling Goose was formerly considered to be a set of subspecies of the Canada Goose. The Canada Goose is also referred to as the Canadian Goose
The Cackling Goose was originally considered to be the same species or a subspecies of the Canada Goose, but in July 2004 the American Ornithologists' Union's Committee on Classification and Nomenclature split the two into two species, making Cackling Goose into a full species with the scientific name Branta hutchinsii. The black head and neck with white "chinstrap" distinguish the Canada Goose from all other goose species, with the exception of the Barnacle Goose, but the latter has a black breast, and also grey, rather than brownish, body plumage There are seven subspecies of this bird, of varying sizes and plumage details, but all are recognizable as Canada Geese. Some of the smaller races can be hard to distinguish from the newly-separated Cackling Goose.
An exceptionally large male of the race B. c. maxima, the "giant Canada goose" (which rarely exceed 8 kilograms (18 lb)), weighed 10.9 kilograms (24 lb) and had a wingspan of 2.24 metres (7.3 ft). This specimen is the largest wild goose ever recorded of any species. The life span in the wild of geese that survive to adulthood ranges 10–24 years.This species is native to North America. It breeds in Canada and the northern United States in a variety of habitats. The Great Lakes region maintains a very large population of Canada Geese.
Contrary to its normal migration routine, large flocks of Canada Geese have established permanent residence in the Chesapeake Bay and in Virginia's James River regions, and in the Triangle area of North Carolina (Raleigh, Durham, Chapel Hill), and nearby Hillsborough. Some flocks in Canada may even choose not to migrate, even during the winter, if food (such as human leftovers) is constantly available throughout the season.
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 V-shaped formation signal the transitions into spring and autumnDuring the second year of their lives, Canada Geese find a mate. The female lays 3–8 eggs and both parents protect the nest while the eggs incubate, but the female spends more time at the nest than the male Known egg predators include coyotes Arctic Foxes, Northern Raccoons, Red Foxes, large gulls, Common Raven, American Crows and bears Most of the species that prey on eggs will also take a gosling. Although parents are hostile to unfamiliar geese, they may form groups of a number of goslings and a few adults, called crèches The offspring enter the fledging stage any time from 6 to 9 weeks of age.
Post a Comment