Auk 
360 SAUNDERS, Habits of the Cerulean Warbler. Ga: 
We soon located a male, singing and preening himself, and one 
sat down to watch while the other hunted within call. In ten or 
fifteen minutes he ceased preening and began to feed, and then, 
as before, it kept two pairs of eyes and two B. & L. Stereo 
glasses exceedingly busy to follow him. Presently he darted out 
and gave chase to another bird who proved to be his mate, and 
immediately we quit watching the male and followed the female. 
In less than five minutes she ceased feeding and flew sixty yards, 
straight to the nest, in full view on a bare limb of basswood fifty 
feet from the ground and six feet out from the trunk. This nest 
is supported by one small twig which passes through one corner 
of it; but it is for the most part saddled on the limb just as the 
Blue-gray Gnatcatcher’s or the Ruby-throated Hummingbird’s 
often are. It measures outside two inches high and three inches 
wide; inside }2 deep by 1% wide. The supporting limb is one 
inch in diameter just below the nest, which is mainly composed 
of grasses and a few bark fibres, with a scanty lining of black 
horsehairs in the bottom and on one side, the other side being 
less heavily built and lacking the lining. The whole is covered 
with the same silvery-gray bark strips that the Redstart uses so 
freely, with some intermingling of cobwebs, both barkstrips and 
cobwebs having the appearance of being put on while wet. Incu- 
bation was half finished, and the four eggs measure, by average, 
07 X52) in, ithe ‘extremes, bemp 168 x.52 and) .66% isn. Vihe 
ground color is bluish white and is very thinly covered with small 
spots of light brown and purplish, but around the large end is a 
fairly heavy circle of the same. 
By this time we found the problem solved, and by hunting 
together we found the nest of almost every male we started to 
watch and of every female we saw. ‘The next one had to be 
watched only a short time before his mate was found and we 
watched her for some time building a nest about thirty feet up 
in a tall, slim maple, the nest being against the trunk, and appar- 
ently semi-pensile. This was a peculiarity far from their usual 
method, but as we did not wish to disturb them, in the hope that 
we would return again, we left it. Unfortunately this hope was 
not realized. 
We then walked along for ‘some minutes without finding a 
