
Canada Goose
Kingdom: Animalia, Phylum: Chordata, Class: Aves, Order: Anseriformes, Family: Anatidae, Genus: Branta, Species: Branta canadensis
Family: Anatidae (Ducks, Geese, and Swans)
- Shape
- Asymmetrical with a broad trailing vane and narrower leading vane; rounded tip with a slight curve along the longitudinal axis.
- Size
- Estimated 6 to 8 inches in length (15-20 cm). This size is consistent with the mid-sized secondaries of a large waterfowl species compared to an adult human hand.
- Rarity
- Very Common; one of the most widespread and easily recognized birds in North America.
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Description
A large, heavy-bodied waterfowl with a long black neck and distinctive white 'chinstrap' on a black head. This feather exhibits the drab but functional grey-brown plumage of the wings, designed for powerful migratory flight and thermal regulation in wet environments.
Colour & Pattern
Dull brownish-grey to charcoal-grey on the main vane; the tip features a distinct white or light-grey margin which is common in many goose species; the underside (ventral) is paler and more silver-grey.
Barb Structure
Densely packed pennaceous barbs providing a stiff, wind-resistant surface for flight; plumulaceous (downy) barbs present at the base (superior umbilicus) for insulation.
Texture & Surface
Smooth, stiff, and somewhat oily to the touch for water repellency; the surface has a matte finish typical of waterfowl that spend significant time on land and water.
Key Features
Large size, thick white rachis, solid grey-brown pigment without barring, and the presence of fluffy down at the very base of the quill.
Habitat
Highly adaptable; found in lakes, ponds, rivers, marshes, grain fields, and frequently in suburban parks or golf courses.
Geographic Range
Native to Arctic and temperate regions of North America; widely introduced to Europe, New Zealand, and South America; generally migratory but many urban populations are now year-round residents.
Ecological Role
Primary herbivore (grazer) that helps cycle nutrients between aquatic and terrestrial environments; serves as a common prey species for large predators like bald eagles and coyotes.
Similar Species
Greylag Goose (lighter overall), Cackling Goose (nearly identical but feathers are smaller), or Domestic Goose (usually pure white or highly variegated).
Interesting Facts
Canada Geese fly in a 'V' formation to reduce wind resistance for birds behind the leader, and they are known to mate for life, often staying with the same partner for over 20 years.
Condition Notes
Fair to Good; shows some separation of the barbs ('zipper' effect) and minor wear at the tip, likely a naturally molted feather found during the post-breeding summer molt.