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Canada geese leave the winter grounds more quickly than the summer grounds. Elevated thyroid hormones , such as T 3 and T 4 , have been measured in geese just after a big migration. This is believed because of the long days of flying in migration the thyroid gland sends out more T 4 which help the body cope with the longer journey.
Migration is the regular seasonal movement, often north and south, undertaken by many species of birds. Migration is marked by its annual seasonality and movement between breeding and non-breeding areas. [16] Nonmigratory bird movements include those made in response to environmental changes including in food availability, habitat, or weather.
In winter, snow geese feed on left-over grain in fields. They migrate in large flocks, often visiting traditional stopover habitats in spectacular numbers. Snow geese frequently travel and feed alongside greater white-fronted geese; in contrast, the two tend to avoid travelling and feeding alongside Canada geese, which are often heavier birds.
All winter, robins have roamed in flocks, foraging primarily for berries, never visiting seed feeders. Now, though, like Canada geese, they're pairing up, seeking nesting territory, perhaps in ...
The refuge plays host to the largest wintering populations of lesser sandhill cranes and Ross's geese within the Pacific Flyway. Each autumn over 20,000 cranes and 60,000 arctic nesting geese terminate their annual migrations from Alaska and Canada to make the refuge home for six months. Here they mingle with thousands of other visiting ...
The Wisconsin winter of 2023-24 was so warm in temperature and so low in snowfall that species such as cranes and geese were only pushed out for about a month, according to Andy Radtke of the Aldo ...
The Atlantic Canada goose (Branta canadensis canadensis) is the nominate subspecies of Canada goose, residing in much of the east coast of North America. It has also been introduced to much of Northern Europe and Western Europe. They are often viewed as pests, especially in places they have been introduced to.
It wouldn't be a list of the best states in the USA for bird watching without including Alabama. Alabama's coast is known for being one of the top birding spots in the Southeast.