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The redhead (Aythya americana) is a medium-sized diving duck. The scientific name is derived from Greek aithuia , an unidentified seabird mentioned by authors including Hesychius and Aristotle , and Latin americana , of America. [ 2 ]
The flanks are white, the back brown, and the tail black. The female is mainly a pale brown, with a darker back and crown and a whitish face. Eclipse males are like females but with red bills. They are gregarious birds, forming large flocks in winter, often mixed with other diving ducks, such as common pochards. They feed mainly by diving or ...
Like many ducks, common pochards suffer a high rate of parasitic egg-laying, a behaviour also known as egg dumping. Studies have shown that as many as 89% of nests in some areas contain one or more eggs not laid by the incubating female. [22] [23] The percentage of parasitic eggs may reach as high as 37% of all eggs laid in some populations. [23]
Mergellus albellus female (closeup view). The drake smew, with its 'cracked ice' or 'panda' appearance, is unmistakable, and looks very black-and-white in flight. The females and immature males are grey birds with chestnut foreheads and crowns, and can be confused at a distance with the ruddy duck; they are often known as "redhead" smew. It has ...
Cairina moschata domestica head detail. All Muscovy ducks have long claws on their feet and a wide, flat tail. In the domestic drake (male), length is about 86 cm (34 in) and weight is 4.6–6.8 kg (10–15 lb), while the domestic hen (female) is much smaller, at 64 cm (25 in) in length and 2.7–3.6 kg (6.0–7.9 lb) in weight.
Aythya is a genus of diving ducks, with twelve species currently accepted. [2] The genus was described in 1822 by the German zoologist Friedrich Boie , with the type species being greater scaup . [ 3 ] [ 4 ] The name Aythya comes from the Ancient Greek word αἴθυιᾰ ( aithuia ), which referred to an unknown diving-bird.
The ducks are seen in later in the film around the part where Thumbelina's mother starts to sing Soon (Reprise). [1] [2] Duck Word World: The Learning Box: A yellow duck who is shaped like the word "Duck", similarly to how the other animals are shaped like the words they represent. He is one of the two main protagonists and is Frog's friend ...
This is a list of the breeds of domestic duck which have official recognition at national or international level. [1]Most breeds of duck derive from the wild mallard, Anas platyrhynchos, while a small minority are descendants of the Muscovy duck, Cairina moschata.