12 BULLETIN UNITED STATES GEOLOGICAL SUEVEY. 



On April 20th, soon after reaching Hidalgo, I was directed up the river 

 some four miles by road, and there shot the first three specimens of this 

 new species. 



On May 3d, another was shot among the mezquite timber of the old 

 resaca, within a mile of town. On May 8th, another was shot in a dense 

 forest about half a mile fi-om where the first three were obtained. Sev- 

 eral more were seen ; in fact, they were more abundant than ftny other 

 Warbler. It was a constant surprise to me while on the Rio Grande 

 that so few Warblers were to be seen. I had depended on getting a 

 large number of species, and was constantly on the lookout lor them, 

 daily frequenting places where I expected to find them. 



All of the specimens obtained are males, and I remember of seeing 

 none in pairs. They were seen usually in little groups of three or 

 four. They are by no means shy, but frequenting, as they do, the 

 woods, cannot be readily seen. Dr. Merrill writes me from Fort Brown 

 that in July he found the nest and three young of what he supposed at 

 the time to be Parula americana, but which may prove to helong to this 

 species. I have little doubt that another season will bring to our knowl- 

 edge full accounts of the breeding habits of this beautiful new Warbler. 



I have just received from Dr. Merrill, Fort Brown, a description of 

 the nest found in July: — 



"My nest of Parula was taken July 5th, about five miles from here. 

 It was placed in a small thin bunch of hanging moss, about ten feet from 

 the ground, in a thicket ; was simply hollowed out of the moss, of which 

 it was entirely composed, with the exception of three or four horse- 

 hairs; entrance on side; contained three young about half-fledged. 

 Parents very bold, but thinking they were americana I did not shoot 

 them." 



248— <? —4.37 X 6.75 s 2.25 x 1.68. Apr. 20, Hidalgo. 



250— ^ —4.25 X 6.75 x 2.13 x 1.56. Apr. 20, Hidalgo. 



252— i —4.25 X 6.75 x 2.12 x 1.63. Apr. 20, Hidalgo. 



343— J —4.25 X 6.50 x 2.00 x 1.62. May 3, Hidalgo. 



396— S —4.50 X 7.00 x 2.00 x 1.87. May 8, Hidalgo. 



Helminthophaga rufioapilla, ( Wils.) Bd. — Nashville Warbler. 

 The only specimen seen was in the dense woods in the vicinity of 



Hidalgo. 



395— $ —4.50 X 6.87 x 2.00 x 1.63. May 8, Hidalgo. 



Helminthophaga cblata, {Say) Bd. — Orange-crowned Warhler. 



Only one specimen shot, and we were unable to save it on account of 

 the great heat. Measurements taken and sex examined. The bird was 

 shot in undergrowth, near a lagoon. 



110— $ —4.75 X 7.50 X 2.50 x 2.12. Mar. 29, Brownsville. 



Dendrceca virens, {Om.) Bd. — Black-throated Green Warbler. 



Shot in vicinity of Hidalgo while we were riding along the road 

 through the woods. It is in very fine plumage. 



251— S —5.00 X 7.75 X 2.63 x 2.12. Apr. 20, Hidalgo. 



