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The bill measures 10.5–12 cm (4.1–4.7 in), up to twice the length of a Canada goose (Branta canadensis) bill; the trumpeter swan bill is the largest of any waterfowl species in the world. The legs are gray-pink in color, though in some birds can appear yellowish gray to even black.
There are six living and many extinct species of swan; in addition, there is a species known as the coscoroba swan which is no longer considered one of the true swans. Swans usually mate for life , although separation sometimes occurs, particularly following nesting failure, and if a mate dies, the remaining swan will take up with another.
On average, this is the second largest waterfowl species after the trumpeter swan, although male mute swans can easily match or even exceed a male trumpeter in mass. [ 4 ] [ 15 ] Among standard measurements of the mute swan, the wing chord measures 53–62.3 cm (20.9–24.5 in), the tarsus is 10–11.8 cm (3.9–4.6 in) and the bill is 6.9–9 ...
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A. a. rubrirostris Swinhoe 1871 (Eastern Greylag Goose) Anser cygnoides (Linnaeus 1758) (swan goose) VU A2bcd+3bcd+4bcd; Anser erythropus (Linnaeus 1758) (lesser white-fronted goose) VU A2bcd+3bcd+4bcd; Anser albifrons (greater white-fronted goose) LC. A. a. flavirostris Dalgety & Scott 1948 (Greenland white-fronted Goose)
Canada goose. Order: Anseriformes Family: Anatidae. The family Anatidae includes the ducks and most duck-like waterfowl, such as geese and swans. These birds are adapted to an aquatic existence with webbed feet, bills which are flattened to a greater or lesser extent, and feathers that are excellent at shedding water due to special oils.
The ducks, geese, and swans are small- to large-sized birds with a broad and elongated general body plan. [2] Diving species vary from this in being rounder. Extant species range in size from the cotton pygmy goose, at as little as 26.5 cm (10.5 in) and 164 g (5.8 oz), to the trumpeter swan, at
I present the Men's Expedition parka, which checks the "extreme" mark on Canada Goose's warmth meter, meaning it can withstand freezing weather temps to below 22 degrees F. Warm and functional in ...