Hazel grouse

Hazel grouse
	Hazel grouse
Systematics
Class :	Birds (aves)
Order :	Chicken birds (Galliformes)
Family :	Pheasants (Phasianidae)
Genre :	Hazel grouse
Scientific name
	Tetrastes
	Keyserling & JH Blasius , 1840

The grouse ( Tetrastes ) are a species of bird from the family of pheasant-like (Phasianidae) used to order the chicken birds heard (Galliformes). As a rule, two species that occur in the Palearctic are now included in the genus . Hazel grouse are among the smallest grouse. They have very small beaks and lack a noticeable comb. Both species have 16 tail feathers and relatively small feet with featherless toes. Hazel grouse generally only fly up briefly and cannot fly long distances. The longest recorded flight for a hazel grouse is just over a kilometer. Their habitat are forest regions, they avoid open terrain.

Systematics

The genus Tetrastes is not recognized by some authors . Of these, both the hazel grouse and the black-breasted hazel grouse with the collar grouse belong to the genus Bonasus . These two genera are physiologically similar, but they differ greatly in their behavior. Hazel grouse form a monogamous pair bond. They lack the conspicuous courtship plumage or the conspicuous courtship actions for which the collar grouse is known.

species

Two species are included in the genus.

Hazel Grouse , Tetrastes bonasia , northern Eurasia

Black-breasted hazel grouse or Chinese hazel grouse , Tetrastes sewerzowi , Central China

supporting documents

literature

Steve Madge , Phil McGowan, and Guy M. Kirwan : Pheasants, Partridges and Grouse. A Guide to the Pheasants, Partridges, Quails, Grouse, Guineafowl, Buttonquails and Sandgrouse of the world. Christopher Helm, London 2002, ISBN 0-7136-3966-0 .
Roald Potapov and Richard Sale: Grouse of the World . New Holland Publishers, London 2013, ISBN 978-1-78009-250-8 .

Single receipts

↑ Madge et al., Pp. 373-375
^ Roald Potapov and Richard Sale: Grouse of the World . New Holland Publishers, London 2013, ISBN 978-1-78009-250-8 , p. 57.
↑ see for example Roald Potapov and Richard Sale: Grouse of the World . New Holland Publishers, London 2013, ISBN 978-1-78009-250-8 . P.56
↑ Madge et al., P. 374

Web links

Commons : Hazel Grouse Tetrastes - Collection of images, videos and audio files

[1] Madge et al., Pp. 373-375

[2] Roald Potapov and Richard Sale: Grouse of the World . New Holland Publishers, London 2013, ISBN 978-1-78009-250-8 , p. 57.

[3] see for example Roald Potapov and Richard Sale: Grouse of the World . New Holland Publishers, London 2013, ISBN 978-1-78009-250-8 . P.56

[4] Madge et al., P. 374