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The common goldeneye or simply goldeneye (Bucephala clangula) is a medium-sized sea duck of the genus Bucephala, the goldeneyes. Its closest relative is the similar Barrow's goldeneye . [ 2 ] The genus name is derived from the Ancient Greek boukephalos ("bullheaded", from bous , "bull " and kephale , "head"), a reference to the bulbous head ...
The avifauna of Indonesia include a total of 1809 species, of which 786 are endemic, and 3 have been introduced by humans. 150 species are globally threatened. This list's taxonomic treatment (designation and sequence of orders, families and species) and nomenclature (common and scientific names) follow the conventions of The Clements Checklist ...
Goldeneye. Known fossil taxa are: Bucephala cereti (Sajóvölgyi Middle Miocene of Mátraszõlõs, Hungary - Late Pliocene of Chilhac, France) Bucephala ossivalis (Late Miocene/Early Pliocene of Bone Valley, United States), which was very similar to the common goldeneye and may even have been a paleosubspecies or direct ancestor
However, forced extrapair copulation among anatids is common, occurring in 55 species in 17 genera. [4] Anatidae is a large proportion of the 3% of bird species to possess a penis, [5] [6] though they vary significantly in size, shape, and surface elaboration. [7] Most species are adapted for copulation on the water only. They construct simple ...
Most endemic birds are in the Wallacea region of eastern Indonesia. Sulawesi supports twelve endemic bird genera . Of all Indonesian endemic birds, about sixty-one species are threatened: thirty-seven species are listed as vulnerable , twenty-three are endangered and eleven species are listed as critical on the IUCN Red List of Threatened Species .
Barrow's goldeneye: Bucephala islandica (Gmelin, JF, 1789) 158 Smew: Mergellus albellus (Linnaeus, 1758) 159 Hooded merganser: Lophodytes cucullatus (Linnaeus, 1758) 160 New Zealand merganser: Mergus australis Hombron & Jacquinot, 1841 (E) 161 Brazilian merganser: Mergus octosetaceus Vieillot, 1817: 162 Common merganser: Mergus merganser ...
Pages in category "GoldenEye" The following 13 pages are in this category, out of 13 total. This list may not reflect recent changes. G. GoldenEye;
The Common goldeneye, a diving duck, lives on fish. Experimental evidence of competition has been difficult to obtain in highly mobile animals that cannot be meaningfully confined to plots of limited size. Many such animals are believed to compete with less mobile, resident taxa, but the supporting evidence has often remained circumstantial. [10]