Goldeneye (duck)

Goldeneye
	Common goldeneye (Bucephala clangula)
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Aves
Order:	Anseriformes
Family:	Anatidae
Subfamily:	Merginae
Genus:	Bucephala; S.F. Baird, 1858
Species
	Bucephala albeola; Bucephala clangula ; Bucephala islandica
Synonyms
	Glaucionetta; Charitonetta; see text

Bucephala is a genus of diving ducks found in the Northern Hemisphere. The genus name is derived from Ancient Greek boukephalos, "bullheaded", from bous "bull", and kephale, "head", a reference to the crest of the bufflehead making its head look large.[1]

The bufflehead was formerly treated as the only member of the genus (sometimes unnecessarily changed to Charitonetta) while the goldeneyes were incorrectly placed in Clangula (as Clangula americana), the genus of the long-tailed duck, which at that time was placed in Harelda.[2] It may yet be correct to recognise two genera, as the bufflehead and the two goldeneyes are well diverged. In this case, Bucephala would be restricted to B. albeola and the name Glaucionetta (Stejneger, 1885) resurrected for the goldeneyes.

Species

The three living species are:

Scientific name	Common Name	Distribution
Bucephala clangula	Common goldeneye	Canada and the northern United States, Scandinavia, the Baltic States, and northern Russia
Bucephala islandica	Barrow's goldeneye	northwestern North America
Bucephala albeola	Bufflehead	North America and the southern United States.

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
Bucephala fossilis (Late Pliocene of California, United States)
Bucephala angustipes (Early Pleistocene of central Europe)
Bucephala sp. (Early Pleistocene of Dursunlu, Turkey: Louchart et al. 1998)

gollark: As well as that, the dedicated GPU is arguably a "computer" too, and it has at least one microcontroller on it for various things. Also, the internal keyboard and camera are connected over USB, which means they probably have their own microcontrollers.

gollark: I don't have one of those, but yes.

gollark: It has a WiFi card, obviously, which has yet another computer in it for running... whatever WiFi cards do...

gollark: Graphics Microcontroller and HEVC Microcontroller, they're a weird implementation detail of recent Intel GPUs.

gollark: That is of course not all.

References

Louchart, Antoine; Mourer-Chauviré, Cécile; Guleç, Erksin; Howell, Francis Clark & White, Tim D. (1998). L'avifaune de Dursunlu, Turquie, Pléistocène inférieur: climat, environnement et biogéographie. C. R. Acad. Sci. Paris IIA 327(5):341-346. [French with English abridged version] doi:10.1016/S1251-8050(98)80053-0 (HTML abstract)

Media related to Bucephala at Wikimedia Commons

Jobling, James A (2010). The Helm Dictionary of Scientific Bird Names. London: Christopher Helm. p. 79. ISBN 978-1-4081-2501-4.
Report of the National conference on utilization of forest products. New national museum, Washington, DC, November 19 and 20, 1924. Issue 13. US Govt. print. off. 1925.

External links

Common Goldeneye at Birdzilla

This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.

[job90-1] Jobling, James A (2010). The Helm Dictionary of Scientific Bird Names. London: Christopher Helm. p. 79. ISBN 978-1-4081-2501-4.

[2] Report of the National conference on utilization of forest products. New national museum, Washington, DC, November 19 and 20, 1924. Issue 13. US Govt. print. off. 1925.