203 



Order X.— GALLING. 



Family TETRAONIDJE. (Bonaparte. J 



Genus Tetrao. ( 'Linnaeus. J 



Generic Characters. — Beak short, strong, naked at the hase; 

 superior mandible arched, convex, and curved from its origin. 

 Kares basal, half covered by an arched membrane, hidden 

 by the forward feathers of the forehead; eyebrows naked, 

 garnished by red papilla?. Feet with three toes in front, 

 united as far as the first articulation; one toe behind, short: 

 the edges of all pectinated. Tarsi feathered to the toes, and 

 often even to the claws. Tail composed of sixteen or eighteen 

 feathers. Wings short; the first primary short, the second 

 shorter than the third, fourth, and fifth, which are the 

 longest. 



HAZEL GROUSE. 



Tetrao bonasia. 



Tetrao bonasia, Linn^us, 1766. 



Gallina corylorum, Aldeovandus, 1599. 



Bonasia, Beisson, 1760. 



Bonasia sylvestris, Bonaparte, 1838. 



Tetrastes bonasia, Keyseeling et Blasius, 1840. 



Gelinotte commune, Of the Fbench. 



Gemeines Haselhuhn, Of the Germans. 



Francolino di Monte, Savi. 



Hjerpe, Of the Swedes. 



