202 CALIFORNIA ACADEMY OF SCIENCES  [Proc. 47H Ser. 
tween the principal mountains and the Sugar Loaf hill on the 
southwestern portion of the island. 
They frequented the bushes and trees and were seldom 
seen on the ground. Their movements were quite rapid, al- 
though often not quick enough to escape the stick in the hand 
of the collector. The bird often sat on a limb until ap- 
proached within a foot or two, when it would dart off to an 
adjacent branch. At each resting place it would look about 
carefully for insects, turning its head in all directions. Occa- 
sionally they were seen in company with vermilion flycatch- 
ers, and once on James they were observed with four or five 
species of ground and tree finches feeding in a large tree with 
red flowers (Erythrina velutina). On southeastern Albemarle 
I observed a pair catching moths for their young. One held 
a moth in its bill for five minutes while examining me, and 
then finally took it to the young, which were only partially 
fledged. At Villamil, Albemarle, one was noticed hunting 
insects in a wood pile near the chief house of the village. 
During the mating season they were heard to sing a little. 
In early January, on James, I saw two chasing each other, 
and heard one singing. A few days later, on southern Inde- 
fatigable, I again heard the song. At Iguana Cove, Albe- 
marle, on March 19 and 20, two, three. and four were often 
seen pursuing each other, and singing constantly. At Acad- 
emy Bay, Indefatigable, on July 11 and 12, two couples were 
observed pursuing each other and calling at the same time. 
In the same locality one was heard calling on the 15th and 
another on the 16th. 
The condition of the reproductive organs was noted as fol- 
lows: 
December 11; Duncan; considerable enlargement. 
January 13; Academy Bay, Indefatigable; large. 
February 8; Basso Pt., Chatham; large. 
May 23; Black Beach Roads, Charles; small. 
In latter May most of the adult land birds on Charles were 
moulting. Two bob-tailed Galapagos Flycatchers with new 
tail feathers just appearing were seen. 
The following is an account of the nests, eggs, and young 
that were found: 
