304 Mr. P. R. Lowe on Birds collected 



fertile cross. The series collected by ray two friends 

 certainly points to hybridizing, the ear-coverts when sullied 

 with brown being accompanied by a browner and longer 

 crest {M. leucogenys) , while pure white ear-coverts accompany 

 a shorter and blacker crest [M. leucotis). 



Molpastes magrathi (PL V.) has deep orange-coloured under 

 tail-coverts, sometimes slightly inclining to crimson. The 

 chest varies from uniform ashy grey to grey with more or less 

 black mottling, the feathers being black in the centre, with 

 ashy margins. I agree with Lieut. Whitehead that, on the 

 present evidence, it is impossible to pronounce these birds 

 to be hybrids. They could only be hybrids between 

 M. leucotis and M. intermedius, but the latter does not occur 

 in Bannu. 



XIIL — Notes on some Birds collected during a Cruise in the 

 Caribbean Sea. By Percy R. Lowe, M.B.O.U. 



The following paper is chiefly based on a collection of birds 

 which I made during the winter of 1907-1908, while cruising 

 with Sir Frederic Johnstone in his yacht ' Zenaida.' It 

 includes, among others, notes on the species met with in 

 some little-known islands off the noi'th coast of Venezuela. 

 Thanks also to Sir Frederic Johnstone, I have previously 

 been able to describe the birds of Margarita and Blanquilla 

 Islands, while some years ago Dr. Hartert described the 

 birds of Curagao, Bonaire, and Aruba {' Ibis/ 1893, p. 318) ; 

 so that my present notes on the birds collected and seen in 

 the island groups of Los Testigos and Los Hermanos make 

 another step towards completing the account of the birds of 

 this interesting chain of islands — the true Leeward Islands. 

 In an endeavour to make them still more complete, I have 

 added a list of the birds which I met with in the Cariaco 

 Peninsula; for not only must the geological formation 

 of this interesting strip of land be referred to the same 

 primitive period as is represented in Margarita, Blanquilla, 



