323 
during a Cruise in the Caribbean Sea. 
Tachycineta albiventris, Sharpe. 
Mimus gilvus subspecies F 
Polioptila plumbeiceps, Lawrence. 
Pcichysilvia griseipes (Richmond). 
Ccereba luteola (Cabanis). 
Volatiniajacarini splendens Richmond. 
Euetheia bicolor omissa (Jardine). 
Cardinalis phamiceus, Gould. 
Tanagra palm arum melanoptera. 
Icterus icterus (Linn.). 
Icterus xanthornus helioeides Clark. 
Molothrus atronitens, Cab. 
Los Hermanos Islands. 
On Jan. 9th, 1908, we steamed across the ten miles of 
sea which separates Blanquilla from the Los Hermanos 
Islets. A fresh trade-wdnd was blowing, and a strong 
current was running between them, so that we had some 
trouble in landing on Orquilla, one of the more northern of 
the seven islets. 
The group is situated forty-five miles due north of the 
north-west point of Margarita Island, which is itself about 
twenty miles or more from the mainland of Venezuela. 
They together occupy a space of about eight miles in a 
N.N.W, and opposite direction, and consist of masses of a 
granite-like rock (diorite), which rise more or less abruptly 
from the sea. 
Orquilla, the only islet that we had time to explore, is, so 
far as we could judge, about two miles or more long by a 
mile wide. It rises to a height of 650 feet, and is covered 
with a thick growth of cacti, agaves, and tall coarse grass, 
while here and there are patches of sea-grape and fairly tall 
mangrove-trees. Near the top, dense masses of tall, upright 
Cerei grow to a height far above a man’s head. In the 
short time at our disposal (about five hours) at least two- 
thirds of the island was left unexplored, owing to the very 
great difficulty in making a way through the scrub, so that 
it is possible that there may be other land-birds there which 
we did not come across. At a height of 600 feet there is a 
long, saddle-backed ridge, nearly a mile long, which we had 
