438 BIRDS OF BRITISH BURMAH. 



flanks and lateral under tail-coverts white; the central median wing- 

 coverts and the later secondaries hair-brown, edged paler. 



Bill dull black ; legs and feet polished black, with a conspicuous pale 

 yellow patch in the centre of each web ; irides blackish. (Butler.} 



Length 7 inches, tail 3, wing 5*8, tarsus 1-4, bill from gape '7. 



Storm-Petrels have been known for many years past to frequent the 

 Indian seas ; but until lately no specimen had been procured for identifi- 

 cation. In 1875 Capt. Butler secured several birds which proved to be 

 the present species. Mr. Davison observed large numbers of Petrels one 

 year off the Tenasserim coast; and there can be little doubt that his 

 surmise is correct that they all belonged to this same species. I there- 

 fore introduce it into my work. 



Wilson's Petrel is found in all the seas of the tropical and temperate 

 zones, and may be recognized not only by the pale patch on the wing, but 

 also, when alive or when recently killed, by the yellow patches on the 

 webs between the toes. 



It is an oceanic bird, seldom going to land except for the purpose of 

 breeding. It lays a single egg marked with small red freckles, in chinks 

 and crevices of rocks or under stones. 



Genus DAPTION, Stephens. 



777. DAPTION CAPENSIS. 

 THE CAPE PETREL. 



Procellaria capensis, Linn. Syst. Nat. i. p. 213. Daption capensis, Gould, B. 

 Austr. vii. pi. 53; Sharpe, Rep. Trans. Venus Exped. p. 118 ; Hume, S. F. vii. 

 pp. 442, 463, viii. p. 115 ; Legge, Birds Ceylon, p. 1056. 



Description. The whole head, chin, sides and back of the neck, upper 

 back and lesser wing-coverts sooty brown ; back, rump, upper tail-coverts, 

 scapulars and tertiaries white, each feather broadly tipped with sooty 

 brown ; secondaries more broadly tipped ; median and greater wing-coverts 

 with the outer webs and the tips of the inner sooty brown, remainder of 

 the inner web white ; primaries blackish, with a broad white marginal 

 band on the inner web ; basal two thirds of tail white, remainder sooty 

 brown ; the whole lower plumage from the chin white ; under tail-coverts 

 tipped with sooty brown. 



Length about 14 inches, tail 4, wing 9, tarsus T7, bill from gape T5; 

 the tail rounded, the outermost feathers falling short of the tip of the tail 

 by less than 1 inch. 



Bill blackish brown; irides and feet very dark brown. (Gould.} 



