MNIOTILTID.-E. 
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suitable woodland, and excepting the Chestnut-sided Warbler was, 
perhaps, the most common representative of its genus. 
Three nests were discovered by Mr. Pearsall. One was in process 
of construction, May 31, and nine days later contained four eggs; 
another held the same number on June 12; and one found with a 
single egg in the intermediate time on a subsequent visit had been 
destroyed. The respective situations of these nests were: “ fully four 
feet from the ground in a wild raspberry;” “ in the crotch of a Hobble 
Bush [ Viburnum lantanoidcs ] about a foot high;” about the same dis- 
tance from the ground “ in a bunch of beech sprouts.” Mr. Pearsall's 
description of two of these nests shows that a single type of structure 
is not adhered to: The first nest was bulky “and not so neat a 
structure as that of the Chestnut-sided Warbler, the outside seeming 
a thick layer of dead bits of wood and fine bleached leaves, the cup 
being' rather shallow and small, and lined with fine grasses. ” The 
last nest found was “more loosely constructed, of fine hemlock bark 
exclusively, depending upon the thick sprouts for its support.” Mr. 
Burroughs describes a nest of this bird from the Catskills* which was 
“ built in the fork of a little hemlock, about fifteen inches from the 
ground.” My brothers, on May 31, 1874, met with a pair of these 
warblers working on a partially constructed nest “in a beech sprout, 
about a foot above the ground" 
Dendroeca coronata (L.) Gray. Yellow-rumped Warbler. 
Not until my last visit to the Catskills was this species detected. 
Although I had twice previously failed to find it, even at the summit 
of Slide Mountain, on the latter occasion it was found to be a rather 
common bird, not only at that elevated point but for some distance 
lower down, and seemed almost entirely to replace the Black-and- 
Yellow Warbler which had before been common there. The birds 
were in full song, and a female which was shot showed evident signs 
of incubating. Mr. Pearsall observed a pair on one of the lower 
slopes along the valley. 
Dendroeca maculosa (Gmel.) Baird. Black-and- Yellow Warbler. 
Found about Summit and throughout the Big Indian Valley, but 
evidently much more at home among the balsams on the mountains. 
At the top of Slide Mountain a nest was discovered June 12, 1880, 
built about five feet above the ground in a young balsam tree ; it 
contained three fresh eggs but was somewhat disordered and had 
been deserted. Mr. H. B. Bailey who examined this nest states that 
it is so nearly identical with those of the Black-and- Yellow Warbler 
* Locusts and Wild Honey, 1880, p. 258. 
