TETRAONIDA:—GROUSE. 229 
vermiculated with black, all the feathers except two central ones 
crossed by a broad subterminal black band ; chin and fhroat 
black, encircled by a white band, which springs from base ot 
upper mandible; a few feathers behind the eye white; 
feathers of breast and flanks brown, becoming rufous at their 
bases and broadly tipped with white; bases of abdominal 
feathers black ; under tail-coverts variegated with brown and 
red, and tipped with white; bill blackish horn-colour ; legs, 
feet and irides brown; eyebrows bare. Length about 12:5 
inches ; culmen 0°65 ; wing 6°5; tail 5 ; tarsus 1°25. 
Adult Female: Slightly smaller and more rufous above : 
ear-coverts distinctly rufous ; throat yellowish-white, slightly 
varied with black spots ; eyebrows feathered. 
Young: Upper parts paler grey ; head clear brown mottled 
with black; throat pale fulvous, mottled with dusky brown : 
under parts generally shaded with fulvous; otherwise similar 
to the adult female. 
Distribution: Found in the elevated regions of Northern 
and Central Europe and Northern Asia, ranging from the 
Pyrenees to Japan. 
Habitat: Alpine regions where there is undergrowth of 
bushes or heather. 
MENZBIER’S HAZEL-GROUSE. 
Bonasa griseiventris JZenz. 
Adult: Ground colour throughout, both above and beneath 
distinctly cinereous, washed with brown on the crown, ana 
irregularly with paler brown on the under parts; upper parts 
marked as in #2. detulina, but not so boldly on the scapulars 
and wing-coverts ; no white on upper parts except a few 
feathers behind the eyes ; dark sub-terminal tatl-band, tll-defined 
and not conspicuous, asin B. betulina ; none of the rectrices white- 
tipped ; under parts. narrowly and closely barred with brown, 
most conspicuously so on the chest ; chin feathers pure white ; 
eyelid in male bare; bill, legs and feet as in B. detulina. 
Length 13°5 inches ; culmen 0°75 ; wing 6°5 ; tail 5 ; tarsus I. 
Young: Unknown. ? 
Distribution: Inhabits the extreme east of Russia, nea 
the sources of the Petchora and Kama rivers. 
Habitat: Probably similar to that of B. detulina. 
