suitable woodland, and excepting the Chestnut-sided Warbler was, 

 perhaps, the most common representative of its g^enus. 



Three nests were discovered by Mr. Pearsall. One was in process 

 of construction, May 31, and nine days later contained four eo^frs ; 

 another held the same nuniber on June 12; and one found with a 

 sinj^le egg" in the intermediate time on a subsequent visit had been 

 destroyed. The respectixe situations ot these nests were: " fully four 

 feet from the ground in a wild raspberry;" " in the crotch of a Hobble 

 Rush \^]lbuniHin lautanoidcs\ 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 \Wirbler. the outside seeming 

 a thick layer of dead bits ot 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, ""^et with a pair of these 

 warblers working on a partially constructed nest "in a beech sprout, 

 about a foot above the ground " 



Deiulrwca corouata (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 deviated 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 sono^. and a female which was shot showed evident siens 

 of incubating. Mr. Pearsall observed a pair on one of the lower 

 slopes along the valley. 



DeudroBca 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 lune 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. 



