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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.
The native range of the Atlantic Canada goose is the east coast of North America. These birds summer in eastern Labrador, Newfoundland, and various islands in the Gulf of St. Lawrence and winter in much of the eastern United States, as far south as North Carolina. [1]
The native range of the Vancouver Canada goose is southern Alaska from Glacier Bay down to western British Columbia, where 90% of this subspecies remains year-round. . Despite its name, this subspecies does not regularly occur in the city of Vancouver or the Lower Mainland, where it is replaced by the introduced resident Moffitt's Canada Geese (B. c. mo
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.
However, giant geese have both a lower call and a larger bill to body size ratio. Another good identifier includes the black on the neck, which starts much further up the neck than any other subspecies. The giant goose's white cheek patch is very large, reaching the lower bill. Unlike other variants, the underbelly is very pale.
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 ] Due to the species' minimal population and exclusive breeding grounds, the dusky Canada goose is a species of interest to the Pacific Flyway Council and the U.S ...
The taxonomic treatment [3] (designation and sequence of orders, families and species) and nomenclature (common and scientific names) used in the accompanying bird lists adheres to the conventions of the AOS's (2019) Check-list of North American Birds, the recognized scientific authority on the taxonomy and nomenclature of North America birds.
Tyrant flycatchers are Passerine birds which occur throughout North and South America. They superficially resemble the Old World flycatchers, but are more robust and have stronger bills. They do not have the sophisticated vocal capabilities of the songbirds. Most, but not all, are rather plain. As the name implies, most are insectivorous.