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The greater scaup (Aythya marila), just scaup in Europe or, colloquially, "bluebill" in North America, [3] is a mid-sized diving duck, larger than the closely related lesser scaup and tufted duck. It spends the summer months breeding in Iceland , east across Scandinavia , northern Russia and Siberia , Alaska , and northern Canada .
This will help protect endangered birds, contribute to a better understanding of poultry physiology and embryonic development, and provide technical methods for poultry transgenic. [26] Hybrid ducks of the genus Aythya include birds that are a mixture of tufted duck, greater scaup, pochard, ferruginous duck and ring-necked duck. List of duck ...
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Such "day-old chicks" are sometimes sold as food for captive and falconers birds of prey. [21] The old hens also have little commercial value. Thus, the main sources of poultry meat a hundred years ago (spring chickens and stewing hens) have both been entirely supplanted by meat-type broiler chickens.
Scaup is the common name for three species of diving duck: Greater scaup, or just "scaup", Aythya marila; Lesser scaup, Aythya affinis;
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The Greater Scaup is 20 per cent heavier and 10 per cent longer than the closely related Lesser Scaup], Sentence order, this "breaks" into the middle of your dialog on male characteristics. I moved the sentence in question to before the description of the drake, so it is now right after wingspan and weight sentence.--
The only ducks which are similar are the greater scaup and lesser scaup, but these species have no tuft and a different call. The tufted duck is one of the species to which the Agreement on the Conservation of African-Eurasian Migratory Waterbirds applies. [11] Refer to the following table for measurements of the tufted duck: [12]