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Mandarin duck (male) in eclipse plumage. Many male ducks have bright, colourful plumage, exhibiting strong sexual dimorphism. However, they moult into a dull plumage after breeding in mid-summer. This drab, female-like appearance is called eclipse plumage. When they shed feathers to go into an eclipse, the ducks become flightless for a short ...
Common eiders (Somateria mollissima) in the breeding season on Texel, the Netherlands. The common eider (pronounced / ˈ aɪ. d ər /) (Somateria mollissima), also called St. Cuthbert's duck or Cuddy's duck, is a large (50–71 cm (20–28 in) in body length) sea-duck that is distributed over the northern coasts of Europe, North America and eastern Siberia.
A duckling is a young duck in downy plumage [1] or baby duck, [2] but in the food trade a young domestic duck which has just reached adult size and bulk and its meat is still fully tender, is sometimes labelled as a duckling. A male is called a drake and the female is called a duck, or in ornithology a hen. [3] [4] Male mallard. Wood ducks.
The wood duck's weight ranges from 454–862 grams (16.0–30.4 oz). [9] This is about three-quarters the length of an adult mallard. It shares its genus with the Asian mandarin duck (Aix galericulata). [2] The adult male has stunning multicolored iridescent plumage and red eyes, with a distinctive white flare down the neck.
Like other species in the genus Mergus, it has a crest of longer head feathers, but these usually lie smoothly rounded behind the head, not normally forming an erect crest. Adult males in breeding plumage are easily distinguished, the body white with a variable salmon-pink tinge, the head black with an iridescent green gloss, the rump and tail ...
This is supported by the observation that in mallard × American black duck hybrids, females of both taxa prefer the sexually dimorphic mallard drakes over the dull-plumaged black duck drakes; [23] [24] that the green-winged teal is in some aspects—such as the less contrasting nuptial plumage—intermediate between the common and speckled ...
The eiders (/ ˈ aɪ. d ər /) are large seaducks in the genus Somateria.The three extant species all breed in the cooler latitudes of the Northern Hemisphere. [2]The down feathers of eider ducks and some other ducks and geese, are used to fill pillows and quilts—they have given the name to the type of quilt known as an eiderdown.
The plumage coloring of both the Rouen drake and the Rouen duck are nearly identical to that of the Mallard drake and Mallard duck. The Rouen color pattern is referred to as gray. [ 2 ] Males have dark yellow bills, [ 3 ] green heads, white collars, black tail coverts and dark, ashy brown tail feathers, [ 4 ] a dark gray upper back and light ...