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The blue-billed duck (Oxyura australis) is a small Australian stiff-tailed duck, with both the male and female growing to a length of 40 cm (16 in). [2] [3] The male has a slate-blue bill which changes to bright-blue during the breeding season, hence the duck's common name.
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]
The lake duck grows to 36–46 centimetres (14–18 in). Females weigh 510–700 grams (18–25 oz) and males 600–850 grams (21–30 oz). Males can be distinguished from Andean duck (Oxyura ferruginea), a similar species, by being smaller and having a flatter head. [2] Female ducks have an anti-corkscrew vagina made for difficult penetration.
The blue-billed teal, spotted teal or Hottentot teal (Spatula hottentota) is a species of dabbling duck of the genus Spatula. It is migratory resident in eastern and southern Africa, from Sudan and Ethiopia west to Niger and Nigeria and south to South Africa and Namibia. [1] [2] In west Africa and Madagascar it is sedentary.
The platypus (Ornithorhynchus anatinus), sometimes referred to as the duck-billed platypus, is a semiaquatic, egg-laying mammal endemic to eastern Australia, including Tasmania. The platypus is the sole living representative or monotypic taxon of its family Ornithorhynchidae and genus Ornithorhynchus , though a number of related species appear ...
Chubut steamer duck: Tachyeres leucocephalus Humphrey & Thompson, 1981: 40 Torrent duck: Merganetta armata Gould, 1842: 41 Spur-winged goose: Plectropterus gambensis (Linnaeus, 1766) 42 Comb duck: Sarkidiornis sylvicola Ihering, HFA & Ihering, R, 1907: 43 Knob-billed duck: Sarkidiornis melanotos (Pennant, 1769) 44 Blue-winged goose: Cyanochen ...
A Donald Duck mascot seen gesturing during the 90th anniversary of the Disney's character "Donald Duck" event at Siam Paragon the shopping mall in Bangkok, Thailand on June 7, 2024.
It resembled a small ruddy duck or, even more, an Argentine blue-bill. A larger Middle Pleistocene fossil form from the southwestern United States was described as Oxyura bessomi; it was probably quite close to the ruddy duck. "Oxyura" doksana from the Early Miocene of Dolnice (Czech Republic) cannot be assigned to any anatine subfamily with ...