126 ALLEN S NATURALISTS LIBRARY. 



A single male specimen of this fine Francolin is all that has 

 so far been obtained. 



XXIX. THE DOUBLE-SPURRED FRANCOLIN. FRANCOLINUS 

 BICALCARATUS. 



Tetrao bicakaratus, Linn. S. N. i. p. 277 (1766). 



Perdix senegalcnsis, Bonn. Tabl. Encyl. Meth. i. p. 212, pi- 93, 



fig. 2 (i790- 

 Perdix adansonii, Temm. Pig. et. Gall. iii. pp. 305, 717 



(1815). 

 Francolinus bicalcaratus, Gray, List Gall. Brit. Mus. p. 33 (1844); 

 Ogilvie-Grant, Cat. B. Brit. Mus. xxii. p. 160 (1893). 



Adult Male and Temale. — Plumage above brown, mottled with 

 black, the feathers of the back and wings with a sub-marginal 

 whitish band ; throat white; chest 2indi rest of under-parts pale 

 buff, most of the feathers margined on each web with chestnut 

 and with a racket-shaped black mark down the middle. Male 

 with ttvo pairs of spurs on each foot, the second (upper) pair 

 being shorter and less pointed. Total length, 12-5 inches; 

 wing, 6-8 ; tail, 2*5 ; tarsus, 2-1. 



Range. — West Africa, from the River Niger to the Mogador 

 Coast and Cape Blanco, Marocco. 



Eggs. — Uniform greenish stone-colour. Average measure- 

 ment, 1-75 by 1-4 inch. 



XKX. CLAPPERTON'S FRANCOLIN. FRANCOLINUS CLAPPERTONI. 



Francolinus clappertoni^ Children, in Denham and Clapperton's 



Trav. App. xxi. p. 198 (1826) ; Ogilvie-Grant, Cat. B. Ikit. 



Mus. xxii. p. 162 (1893). 



Perdix clappertoni, Cretzschm. in Rlipp. Atl. p. 13, pi. 9 (1826). 



Adult Male and Female. — Top of the head and ground-colour 



of the back and wings rufous or olive-brown, each feather of 



the mantle widely margined all rcmnd with whitish buff, and 



irregularly barred with buff; throat white; chest and rest of 



under-parts creamy-buff, with wide blackish-brown shaft- 



