Search results
Results From The WOW.Com Content Network
The falcated duck breeds in eastern Asia. It nests in eastern Russia, in Khabarovsk, Primorskiy, Amur, Chita, Buryatia, Irkutsk, Tuva, eastern Krasnoyarsk, south central Sakha, Sakhalin, extreme northeastern North Korea and northern China, in northeastern Inner Mongolia, and northern Heilongjiang, and in northern Japan, Hokkaidō, Aomori, and the Kuril Islands. [4]
The gadwall was first described by Carl Linnaeus in his landmark 1758 10th edition of Systema Naturae. [3] DNA studies have shown that it is a sister species with the falcated duck; the two are closely related to the three species of wigeons, and all of them have been assigned to the genus Mareca.
The wigeons' closest relatives, forming with them the genus Mareca, are the gadwall and the falcated duck. [1] [2] All three wigeons are similarly shaped, with a steep forehead and bulbous rear to the head. All three wigeon species hybridise in captivity [3] while American and Eurasian wigeons hybridise in the wild. [4]
Ducks generally only have one partner at a time, although the partnership usually only lasts one year. [26] Larger species and the more sedentary species (like fast-river specialists) tend to have pair-bonds that last numerous years. [27] Most duck species breed once a year, choosing to do so in favourable conditions (spring/summer or wet seasons).
Here, millions of people come together to share the most surprising, obscure, and fascinating facts they’ve just discovered. Some change how we see the world, while others are simply ...
Beyoncé is adding more shows to her upcoming "Cowboy Carter" tour and making history in the process.. The 35-time Grammy winner added a fifth stadium show in Los Angeles and New Jersey on ...
The eastern spot-billed duck or Chinese spot-billed duck (Anas zonorhyncha) is a species of dabbling duck that breeds in East and Southeast Asia. This species was formerly considered a subspecies of the Indian spot-billed duck and both were referred to as the spot-billed duck (A. poecilorhyncha). The name is derived from the yellow spot on the ...
Last week, Rep. Thomas Massie re-introduced a bill that seeks to abolish the U.S. Department of Education. The one-sentence bill was re-introduced by Massie, a Republican representing Kentucky, on ...