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Branta Canadensis - Canadian Geese Landing On Porpoise Channel - Stony Brook, New York by © Sophie W. Smith
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Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Anseriformes
Family: Anatidae
Subfamily: Anserinae
Tribe: Anserini
Genus: Branta
Species: B. canadensis
Binomial name
Branta canadensis

Behavior

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 autumn. In some areas, migration routes have changed due to changes in habitat and food sources. In mild climates from California to the Great Lakes, some of the population has become non-migratory due to adequate winter food supply and a lack of former predators.[citation needed]

Diet

Canada Geese are primarily herbivores,14 although they sometimes eat small insects and fish.15 Their diet includes green vegetation and grains. The Canada Goose eats a variety of grasses when on land. It feeds by grasping a blade of grass with the bill, then tearing it with a jerk of the head. The Canada Goose also eats beans and grains such as wheat, rice, and corn when they are available. In the water, it feeds from silt at the bottom of the body of water. It also feeds on aquatic plants, such as seaweeds.10 In urban areas, they are also known to pick food out of garbage bins.

Reproduction

During the second year of their lives, Canada Geese find a mate. They are monogamous, and most couples stay together all of their lives.10 If one dies, the other may find a new 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.[citation needed]

Known egg predators include coyotes,16 Arctic Foxes, Northern Raccoons, Red Foxes, large gulls, Common Raven, American Crows and bears.17

The incubation period, in which the female incubates while the male remains nearby, lasts for 24–28 days after laying. As the annual summer molt also takes place during the breeding season, the adults lose their flight feathers for 20–40 days, regaining flight at about the same time as their goslings start to fly.18

Adult geese are often seen leading their goslings in a line, usually with one parent at the front, and the other at the back. While protecting their goslings, parents often violently chase away nearby creatures, from small blackbirds to lone humans that approach, after warning them by giving off a hissing sound and will then attack with bites and slaps of the wings if the threat does not retreat or has seized a gosling. 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.[citation needed]

The offspring enter the fledging stage any time from 6 to 9 weeks of age. They do not leave their parents until after the spring migration, when they return to their birthplace. Once they reach adulthood, Canada Geese are rarely preyed on, but (beyond humans) are taken by Coyotes, Gray Wolves, Snowy Owls, Golden Eagles and Bald Eagles.Read more

Tags

branta, canadensis, canadian, goose, flight, long island, new york, canada, suffolk, county, wild, animals, birds, fauna, sky, blue, trees, branches, nature, animalia, aves, chordata, anseriformes, anatidae, anserini, geese, porpoise, channel, stony, brook, travel, photograpaphy, tourism, attraction, destination, bird, landing

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