The female will protect her brood, including hatchlings from dump clutches of other females. Dec 16, 2014 - Explore Doug Wilson's board "Bluebill Ducks" on Pinterest. Breeding males are almost cartoonishly bold, with a sky-blue bill, shining white cheek patch, and gleaming chestnut body. Yearlings in captivity were observed to be able to breed. The lesser scaup (Aythya affinis) is a small North American diving duck that migrates south as far as Central America in winter. Female is dark grayish.  It includes such behaviour as rolling the cheek on the back, dab-preening (also sometimes performed by females), and sousing, where the head is thrown into the water in a prone position, and the back arched as if in spasm, with possibly the legs throwing spray above the body. On one hand, pollution and habitat destruction, especially in the wintering regions, has certainly increased since the early-mid 20th century. The drakes court the hens in the winter quarters; pairs form shortly before and during the spring migration.  Clutch size ranges from 3 to 12, the most common being 5 to 6, according to Most of the population decline and reduction of this duck’s range has occurred over the past 100 years or so.  Both result in smaller habitat sizes suitable to water birds.  Any variation in non-captive laying is in accordance to water-levels and hence abundance of food, a fact in contrast to Frith's description of reproduction being tied to the months between September to November. Note bright yellow iris. But breeding Blue-billed Ducks have similar wing lengths relative to body weight as breeding North The lesser scaup (Aythya affinis) is a small North American diving duck that migrates south as far as Central America in winter. Marchant and Higgins. Lesser Scaup. Particularly in the case of vagrant birds in Europe, the identification is complicated by similar-looking Aythya hybrids.  It is apparently a very close relative of the Holarctic greater scaup or "bluebill" (A. marila), with which it forms a superspecies. Scaup Blue Billed Duck - Hand Carved Wooden Decoy Duck Aviologie. Lesser scaup drake in alternate plumage.  At 8 weeks, ducklings are of a similar size to the parents. Two syntype specimens of Fuligula affinis Eyton (Monogr.  The wingspan is 68–78 cm (27–31 in). , The adult males (drakes) in alternate plumage have a black, iridescent head and a small tuft at the hindcrown, a black breast, a whitish-grey back and wings with darker vermiculations and black outer and greyish-brown inner primary remiges. Non-breeding male looks like female but is slightly dark. Mallards will breed with just about anything, and it would seem your bird is the result of a greenhead mating with some manner of blue-billed duck (mallard/pintail is one of the most common n North America), but it's hard to be certain. In Central America, flocks are present from July on, but only really numerous after September. After hatching, the young remain in the nest for 1 day, and are then led by the female from the nest. ... LARGE BLUE BILL CARRY-LITE MILWAUKEE/NORTH AMERICA DUCK DECOY. The tail is usually held flat on the surface of the water, or held erect when defensive. $28.00. 20 Best Duck Species To Hunt in North America Getting familiar with the numerous types of Northern hemisphere ducks is crucial for all waterfowl hunters. An increase of the decline is liable to result in an uplisting to Near Threatened or even Vulnerable status. The ruddy duck is a duck from North America and one of the stiff-tailed ducks. This book covers all the native and vagrant species of birds seen on the North American Continent. Free shipping. It has been reported that both the lesser and the greater scaup have shifted their traditional migration routes to take advantage of the presence of the zebra mussel (Dreissena polymorpha) in Lake Erie, which was accidentally introduced in the 1980s and has multiplied enormously. choose your state. We ran a story …  or Best Offer. The tail feathers for both the male and female are made up of thick, spine-like shafts. Female is brownish-gray, bluish-gray bill.. Watch. They will also fly more frequently, probably due to the open habitat, and escape threats by flying. This ducks are also known as the Blue Bill. And gleaming chestnut body vagrant species of birds seen on the surface of the male deep. Increase the blue-billed duck 's common name cattails…the fast-flying canvasback… or the boisterous goose... 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