72 GAME BIRDS OF THE PROTECTORATES 
back of the neck, back, rump, and upper tail-coverts dull 
buff barred with black ; upper breast white, separated from 
the chest by a narrow black band ; lower breast and belly, 
black, most of the feathers margined with white ; lower 
part of leg and tarsus whitish-buff ; under tail-coverts bright 
buff, with a subterminal black triangular mark. Tail like 
the upper tail-coverts, but the outer feathers are tipped with 
whitish buff. 
Length 8-8 inches, wing 6*4 inches, tail 2*7 inches, tarsus 
1 inch. 
Female . — Differs from the male in having no black and 
white band on the head, the black bars and markings on 
the back, and wing coverts following the shape of the feathers, 
and the neck and chest barred with black. 
Length 8-6 inches, wing 6*1 inches, tail 2*6 inches, tarsus 
1 inch. 
PTEROCLES GUTTURALIS 
Pterocles gutturalis. Smith. 
‘ Ogilvie-Grant’s Cat. Birds Brit. Mus.’ Vol. XXII, page 25. 
‘ Sharpe’s Hand-List,’ Vol. I, page 51. 
Pteroclurus gutturalis. 
‘ Shelley’s Birds of Africa,’ Vol. I, page 184. 
Pterocles saturatior, Reichenow. 
* Reichenow’s Vogel Afrikas,’ Vol. I, page 306. 
The Chestnut- vented Sand -grouse is the largest of the East 
African species and ranges from Kilimanjaro as far north as 
Nairobi. On the Upper Tsavo it is very plentiful, also on the 
Simba river and the Athi, where it breeds in July and August. 
It is also found in Jubaland. Like all the sand-grouse it has 
certain favoured drinking places at which it arrives, in flocks 
of ten to thirty or more, at regular hours in the morning and 
evening. 
Male . — A black band from the nostril to the eye ; a narrow 
buff stripe from above the nostril to the back of the eye ; top 
of the head dull olive-buff, shading into dull yellowish buff on 
the neck ; chin, cheeks, and throat yellowish buff, divided 
from the neck by a wide black band. Back, rump, and upper 
tail-coverts olive-grey, scapulars blackish with greyish-buff 
