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Canada Goose
Branta canadensis
Species
description provided by eNature
Description
Small races, 22-26" (56-66 cm); large races, 35-45" (89-114
cm). Brownish body with black head, long black neck, conspicuous
white cheek patch. The smaller Brant has a shorter neck and lacks
white cheek patch.
Endangered Status
The Aleutian Canada Goose, a subspecies of the Canada goose, was
on the US Endangered Species List until March 2001, when it was
delisted. Although Canada geese are generally plentiful, the small
Aleutian Island race was reduced to under 1,000 individuals in the
1960s, when arctic foxes were introduced on their breeding islands
by fur interests. The geese were wiped out on all but two islands.
Thanks to recovery efforts, Aleutian Canada geese now breed on eight
islands and number about 15,000.
Voice
Rich musical honking in larger races; high-pitched cackling in smaller
races.
Habitat
Lakes, bays, rivers, and marshes. Often feeds in open grasslands
and stubble fields.
Nesting
4-8 whitish eggs in a large mass of grass and moss lined with down;
usually on the ground near water or on a muskrat lodge, but sometimes
in a tree in an abandoned osprey or bald eagle nest.
Range
Breeds from Alaska east to Baffin Island and south to California,
Illinois, and Massachusetts. Winters south to northern Mexico and
Gulf Coast. Widespread as a semi-domesticated bird in city parks
and on reservoirs.
Discussion
Well known for their V-shaped migrating flocks and rich, sonorous
honking, Canada geese are among the most familiar of North America's
waterfowl. There are 11 geographical races, ranging in size from
the "Giant Canada Goose" of the northern prairies to the
diminutive "Cackling Goose," scarcely larger than the
mallard, which nests in the Yukon and winters mainly in California.
The most abundant race is the one that nests south of Hudson Bay,
which numbers well over a million, while the rarest is the Aleutian
Islands form, which nests on only two small islands and numbers
barely over a thousand. Like other geese, these birds are chiefly
grazers, feeding on stubble fields and eating marsh vegetation.
Increasingly tolerant of humans, some Canadas even nest in city
parks and suburbs. They are especially noticeable in late summer
and early fall, when they form molting flocks on golf courses and
large lawns; at such times, they have come to be regarded as pests.
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