BANGS: BIRDS FROM THE CAYMAN ISLANDS. 307 
Z. zenaida. This is wholly due, I think, to wear and the loss of the 
bloom or sheen characteristic of the fresh plumage. 
* CHAEMEPELIA PASSERINA INSULARIS (Ridg.). 
Eleven specimens, all adult males, Grand Cayman, Little Cayman, 
and Cayman Brac. April, May, and June. 
There is no difference in skins from the three islands. On comparing 
this series with an enormous number of Cuban birds, I could find no 
differences at all, in color, color of the bill, size, or anything else. I 
therefore sent the series to W. E. C. Todd, as the latest authority on 
this group of birds, and asked him for an opinion that I might quote 
in print. He replied that he was now fully prepared to say that the 
Cayman and Cuban forms are identical. Chaemepelia passerina 
aflavida (Palmer and Riley) therefore becomes a synonym of P. p. 
insularis (Ridg.). The Jamaican form, though very close still appears 
to be recognizable. 
{ LEPTOTILA JAMAICENSIS COLLARIS (Cory). 
Five specimens, both sexes, all adult, Grand Cayman, May and June. 
Brown considers this Dove to be the rarest of all the peculiar Grand 
Cayman birds. The five specimens he took were the result of days 
spent hunting especially for it in its favorite haunts. 
I can detect no differences whatever in color in comparing these 
Grand Cayman skins with our twelve specimens of true L. jamaicensis 
(Linné) from Jamaica. The Cayman examples appear to have less 
white at the tips of the three outer rectrices. This may be partly, 
perhaps wholly, due to their tail feathers being more worn down at 
the ends. The Cayman specimens also average slightly smaller than 
Jamaican ones, as the following measurements show, but the differ- 
ence is so trifling that a larger amount of material might actually 
turn it the other way, and I doubt much if the form can be maintained. 
GRAND CAYMAN. 
Exposed 
No. Sex Wing Tail Tarsus Culmen 
68334 of 148 103 29 16 
68335 oH 146 GPIK OAS 16 
68338 of 153 105 31.5 15.5 
68336 2 142 95 28 15.5 
68337 Q 144 102 27.5 16 
