These diving birds forage underwater. In fall they eat many seeds of aquatic plants, and in winter they take small marine snails or freshwater clams in their respective habitats.

The species may be the fastest swallow, as it’s been recorded at speeds close to 75 kilometers per hour (km/h). Accessed The west coast population is concentrated in British Columbia, Washington, and California. (Ahlund, 2005; Gauthier, 1993), Bufflehead chicks hatch after 28 to 35 days. Instead, it has both guard hairs and a warm undercoat that trap bubbles of air to help insulate it. The species can be difficult to distinguish from other small sandpipers. In spring, a few appear in the northern states or southern Ontario in March, but the main movement is during the latter half of April. They are not found at high mountain elevations.

Their breeding habitat is wooded lakes and ponds in Alaska and Canada, almost entirely included in the boreal forest or taiga habitat. Because of their striking plumage, highly active nature, and proximity to humans on waterfront properties, buffleheads are one of the most popular birds amongst bird watchers. The light coloration of Snowy Owls provides camouflage when the owls are perched on snow, but this advantage is lost in summer. If the desired nest is occupied when she returns, she searches for a new site with the male. They seldom rest on the water in flocks as do the Aythya diving ducks (scaup, Redhead, Canvasback). They can be found along ecotones, and in marshes, farmlands, grasslands, and open waters. [7] Habitat degradation is the major threat to this bird, since they depend on very limited coastal habitat on their wintering grounds, and very specific habitat in their boreal[11] breeding grounds. The incubation period ranges from 28 to 33 days. The Bufflehead Bucephala albeola is Canada’s smallest diving duck. Each lateral tooth has cusps and together they always occur in a 2-3-3-2 cusp pattern. The genus name is derived from ancient Greek boukephalos, "bullheaded", from bous, "bull " and kephale, "head", a reference to the oddly bulbous head shape of the species.

Prey is swallowed while submerged under the water. The Common Raven is often mistaken for an American Crow in southern Canada and the United States. Canadian Wildlife Service Monograph Series #4. Reprinted with corrections in 1995 Catalogue number CW69-4/40-1995E ISBN 0-662-22941-X Text: A.J. Female buffleheads typically lay their eggs close to the same date each year, but second and third-year breeding females lay 4 to 9 days earlier than first year breeders.

Hooded mergansers are larger and have a fan-shaped white patch on their heads. Finally, the following thorny-headed worms found were: Corynosoma constrictum, Polymorphus acutis, Polymorphus marilis, and Polymorphus obtusus. Averaging 35.5 cm (14.0 in) and 370 g (13 oz), it rivals the green-winged teal as the smallest American duck. National Museums of Canada, Ottawa. Females tend to be smaller, with an average size of 4 m and a maximum size of 5.1 m and weigh around 900 kg. In strong wind, Snowy Owls may seek shelter by crouching on the ground behind a windbreak, such as a pile of stones, snowdrift, or bale of hay. Adult males are striking black and white, with iridescent green and purple heads with a large white patch behind the eye. It is important that these boxes be placed in conifer-heavy areas and the box openings be the correct size and mimic their natural nesting preferences.

Its head makes up about a fourth of its body length, and its mouth is characterized by its arched, or highly curved, jaw. Referring to an animal that lives in trees; tree-climbing. Range mass 270 to 513 g 9.52 to 18.08 oz; Range length 32 to 40 cm 12.60 to 15.75 in; Range wingspan 16.9 to 17.5 cm 6.65 to 6.89 in; Reproduction. Bufflehead: Diving duck winters in New York. Unlike seals and sea lions, the Sea Otter has little body fat to help it survive in the cold ocean water. Comstock, Ithaca, New York. Meanwhile, the adult birds retreat to favoured lakes to undergo the annual moult of their flight feathers.
The lobster’s mouth is located just below its eyes. The ear patch of female buffleheads is more defined than the that of yearling males. This species was first described by Carl Linnaeus in his landmark 1758 10th edition of Systema Naturae as Anas albeola.[2].

In September, Buffleheads of all ages renew the body plumage and build up fat reserves in preparation for the fall migration. Each claw serves a different purpose: the bigger, blunter one is used for crushing, and the smaller one with sharper edges, for cutting. Young buffleheads gather tightly and close behind their mother if she gives an alarm call. (Gammonley and Heitmeyer, 1990; Thompson and Ankney, 2002), Buffleheads are vulnerable to an assortment of predators that include birds of prey and mammals. Breeding females lay a single clutch between late April and mid-May with an average of 9 eggs per clutch. The male Ruffed Grouse is about the size of a bantam chicken and weighs about 500 g. The females are smaller. Food is then brought to the first of the lobster’s two stomachs, which is just inside its mouth! [6] Buffleheads are amongst the last waterfowl to leave their breeding grounds and one of the world's most punctual migrants, arriving on their wintering grounds within a narrow margin of time.[8]. Although the second, smaller incisor tooth often remains embedded in the skull, it rarely but on occasion develops into a second tusk. Although buffleheads do use man-made nest boxes, they still need the forest habitat to thrive. Precocial chicks are born with their eyes open and fully covered in down, with a mass around 23.8 g. Buffleheads are able walk as soon as their plumage dries out. Nest competitors include mountain bluebird (Sialia currucoides), tree swallow (Tachycineta bicolor), and European starling.

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