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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 ...
Barrow's goldeneye (Bucephala islandica) is a medium-sized sea duck of the genus Bucephala, the goldeneyes. This bird was named after Sir John Barrow . The genus name is derived from Ancient Greek boukephalos , "bullheaded", from bous , "bull" and kephale , "head", a reference to the bulbous head shape of the bufflehead .
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
This genus is closely related to Mergus and is sometimes included in it, though it might be closer to the goldeneyes (Bucephala). [2] The smew has hybridized with the common goldeneye (B. clangula). [3] A seaduck fossil from the Middle Miocene shows that birds similar to smew existed up to 13 million years ago.
Altricial birds are less able to contribute nutrients in the pre-natal stage; their eggs are smaller and their young are still in need of much attention and protection from predators. This may be related to r/K selection; however, this association fails in some cases. [18] In birds, altricial young usually grow faster than precocial young.
Habitat degradation is the major threat to this bird, since they depend on very limited coastal habitat on their wintering grounds, and very specific habitat in their boreal breeding grounds. [ citation needed ] Although buffleheads do use man-made nest boxes, they still need the forest habitat to thrive.
Greater white-fronted goose Trumpeter swan Blue-winged teal Common goldeneye The family Anatidae includes the ducks and most duck-like waterfowl, such as geese and swans. These birds are adapted to an aquatic existence with webbed feet, bills which are flattened to a greater or lesser extent, and feathers that are excellent at shedding water ...
Accipitridae is a family of birds of prey, which includes hawks, eagles, kites, harriers and Old World vultures. These birds have very large powerful hooked beaks for tearing flesh from their prey, strong legs, powerful talons, and keen eyesight. White-tailed kite, Elanus leucurus (A) LC; Swallow-tailed kite, Elanoides forficatus (A) LC