BANGS: BIRDS FROM THE CAYMAN ISLANDS. 313 
some other ornithologists that its nearest relation is FL. m. rizsiz Scl. of 
St. Thomas. Nor do I think it very closely related to any of the dis- 
tinctly gray Lesser Antillean forms. It seems obviously much more 
like E. m. subpagana Scl. and Salv. of the near by mainland, with which 
it exactly agrees in size and markings and in color except in being paler 
throughout. In good plumage the belly is uniformly yellow, the chest 
dull yellowish gray, the throat grayish white, and the upper parts olive. 
All these colors, however, are much paler than in the continental bird. 
I think that this bird was derived not through any of the Lesser 
Antillean forms, which on zoégeographical grounds would seem out of 
reason, but like Vireosylua caymanensis and probably Vireo crassi- 
rostris direct from the form occupying the adjacent mainland. 
MIMIDAE. 
* MIMUS POLYGLOTTOS ORPHEUS (Linné). 
One adult o, Grand Cayman, May 14. 
The Jamaican Mockingbird is abundant in Grand Cayman, but 
apparently is wanting in the two smaller islands. 
TURDIDAE. 
MImocicHia RAVIDA Cory. 
Thirteen specimens, both sexes, all adult. Grand Cayman, April, 
May, and June. 
The Grand Cayman Thrush belongs in a group of the genus Mimo- 
cichla by itself, and of all the birds peculiar to the Caymans is the only 
one that is very distinct, having no representative elsewhere. In view 
of the recent origin of the ornis of the Caymans, it is probable that 
there was somewhere, possibly in Jamaica, where no member of the 
genus now occurs, a related form which has disappeared. 
The Thrush is now extremely rare and local in Grand Cayman. 
Brown covered the whole island and found it only in two remote 
patches of woodland. Each of these tracts of rather heavier forest 
than is usual in the island now-a-days was inhabited by a few pairs of 
thrushes, which Brown believes to be the entire population of the 
island. In each of these woods Brown was careful to leave birds 
enough to perpetuate the species, if it is not gradually becoming extinct 
from some natural cause, as seems to be the case. 
