Bonasa bonasia

Bonasa bonasia

Cladus: Eukaryota
Supergroup: Opisthokonta
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Cladus: Deuterostomia
Phylum: Chordata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Superclassis: Tetrapoda
Classis: Aves
Subclassis: Carinatae
Infraclassis: Neornithes
Parvclassis: Neognathae
Ordo: Galliformes
Familia: Phasianidae
Subfamilia: Tetraoninae
Genus: Bonasa
Species: Bonasa bonasia
Subspecies: B. b. amurensis - B. b. bonasia - B. b. gilacorum - B. b. griseonota - B. b. horicei - B. b. kolymensis - B. b. rhenana - B. b. rupestris - B. b. schiebeli - B. b. sibirica - B. b. styriaca - B. b. vicinitas - B. b. volgensis - B. b. yamashinai

Name

Bonasa bonasia (Linnaeus, 1758)

Vernacular names
Беларуская: Рабчык
Български: Лещарка
Česky: Jeřábek lesní
Deutsch: Haselhuhn
Ελληνικά: Δασόκοτα
English: Hazel Grouse
Esperanto: Bonazio
Français: Gélinotte des bois
Lietuvių: Jerubė
Nederlands: Hazelhoen
日本語: エゾライチョウ
Polski: Jarząbek
Slovenčina: Jariabok hôrny
Slovenščina: Gozdni jereb
Suomi: Pyy
Svenska: Järpe

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The Hazel Grouse or Hazel Hen (Bonasa bonasia) is one of the smaller members of the grouse family of birds. It is a sedentary species, breeding across northern Eurasia and central and eastern Europe in dense, damp, mixed coniferous woodland, preferably with some spruce.

The nest is on the ground, and 3–6 eggs is the normal clutch size. The female takes all responsibility for incubating the eggs and caring for the chicks, as is typical with gamebirds.
This is a relatively small grouse at 35–39 centimetres (14–15 in) length. The plumage of this plump bird is finely patterned, but Hazel Grouse essentially has grey upperparts, brown wings and chestnut flecked white underparts.

The male has a short erectile crest and a white-bordered black throat. The female has a shorter crest and lacks the black throat. In flight, this species shows a black-tipped grey tail.

The male has a high-pitched ti-ti-ti-ti-ti call, and the female a liquid tettettettettet. The calls, or the burr of the flying birds' wings, are often the only indication of this grouse's presence, since its shyness and dense woodland habitat make it difficult to see.

This bird feeds on the ground, taking mainly plant food, supplemented by insects when breeding.
[edit] References

1. ^ BirdLife International (2004). Bonasa bonasia. In: IUCN 2004. IUCN Red List of Threatened Species. Downloaded on May 11, 2006.
2. ^ Alan P. Peterson. "Birds of the World — current valid scientific avian names". http://www.zoonomen.net/avtax/frame.html. Retrieved January 27, 2010.

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Source: Wikispecies, Wikipedia: All text is available under the terms of the GNU Free Documentation License

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