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The adult greater scaup is 39–56 cm (15–22 in) long with a 71–84 cm (28–33 in) wingspan and a weight of 726–1,360 g (1.601–2.998 lb). It has a light blue bill with a small black nail on the tip, yellow eyes, and is 20% heavier and 10% longer than the closely related lesser scaup. [ 16 ]
A grape cluster with signs of millerandage with small, immature berries scattered throughout the bunch.. Millerandage (or shot berries, hens and chicks and pumpkins and peas) is a potential viticultural hazard in which grape bunches contain berries that differ greatly in size and, most importantly, maturity.
Chickens remained primarily to provide eggs, mostly to the farmer (subsistence agriculture), with commercialization still largely unexplored. Farm flocks tended to be small because the hens largely fed themselves through foraging, with some supplementation of grain, scraps, and waste products from other farm ventures. Such feedstuffs were in ...
While morphologically close to the dabbling ducks, [1] there are nonetheless some pronounced differences such as in the structure of the trachea. mtDNA cytochrome b and NADH dehydrogenase subunit 2 sequence data indicate that the dabbling and diving ducks are fairly distant from each other, the outward similarities being due to convergent ...
Scaup is the common name for three species of diving duck: Greater scaup, or just "scaup", Aythya marila; Lesser scaup, Aythya affinis;
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.--
Hens give the namesake discordant scaup, scaup call; in courtship drakes produce weak whistles. Hens vocalize more often than those of the greater scaup—particularly during flight—but their call is weaker, a guttural brrtt, brrtt. [2] [7] [8]
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]