180 



point, and sharply edged ; the upper mandible is 

 crossed with four transverse groves, and the under 

 one with three ; the broadest of which is white, and 

 forms a band across them both ; the inside of the 

 mouth is yellow ; the base of the bill is feathered, 

 and marked with a narrow white streak extending to 

 the corner of the eye : a white bar crosses each wing 

 obliquely ; the upper part of the head, hinder part 

 of the neck, back, rump and tail-coverts, are of a 

 soft glossy black, and look something like velvet; 

 the cheeks, chin and throat, are of a dull sooty 

 black ; legs black." 



Weight 22oz. length 18 inches. 



The female lays one egg, of a greenish white co- 

 lour, marked with dark spots : she makes no nest, 

 but deposits it on the bare rock, like the rest of the 

 species. 



3. PICA. 



TORDA 0. OF LATHAM. 



A. rostro lam compresso unisulcato, corpore totosub- 

 tus apicibusque remigum posticarum albis. 



The bill is smaller than in A torda, and smooth ; 

 inside of the mouth pale flesh colour; cheeks, chin 

 and throat white; in other respects like A torda. 



Weight 18oz. length 15 inches. 



Var. bill furrowed, with a white line across each 



