114 Mr. P. R. Lowe on the Birds of 
form on the mainland, but, strangely enough, is not found 
on Margarita Island, which lies much nearer to Venezuela. 
Doleromyia pallida, on the other hand, which is very common 
on Margarita, was conspicuous by its absence on Blanquilla, 
although the conditions for its existence seem to be absolutely 
identical. 
For the opportunity of visiting the island I am much 
indebted to the kindness of Sir Frederie Johnstone and 
Lady Wilton, who, at considerable inconvenience to them- 
selves, allowed their yacht ‘ Zenaida’ to be taken to Blanquilla 
in the interests of ornithological research. JI also take this 
opportunity of expressing my gratitude to my kind friend, 
Dr. Bowdler Sharpe, who on this, as on many other 
occasions, has generously given me his invaluable help. 
The specimens that we collected on Blanquilla Island are 
referable to eight species only, as follows :— 
]. CHAMZPELIA PERPALLIDA. 
Columbigallina passerina perpallida Hartert, Ibis, 1893, 
p. 304. 
Columbigallina passerina Berl. J. f. O. 1892, p. 97 
(Curacao). 
Chamepelia perpallida Sharpe, Hand-l. Birds, i. p. 82. 
Three adult males and five females. 
The Ground-Doves from this island (as well as a series of 
three adult males and three adult females from the island 
of Margarita) are conspicuously paler than examples from 
Jamaica, which are apparently the true C. passerina. This 
pale colour, which prevails in the plumage of both upper 
and under parts and in both sexes, is even more apparent in 
the females than in the males. 
In a series of eight females taken from the two islands the 
abdomen is creamy white, contrasting strongly with birds 
from Jamaica and the Lesser Antillean Islands, and still 
more so with examples from Florida (C. terrestris) and 
Mexico, Texas, and Lower California (C. pallescens). 
In the males of my series from the two islands the 
occipital and nuchal patch of lavender-blue, besides being 
