io6 FIELD MUSEUM OP NATURAL HISTORY ORNITHOLOGY, VOL. I. 



two on February 26th, and one on the nth of March, making six in 

 all. Its habitat appears to be confined to the hillsides, where, during 

 the dry season, the trees are quite bare of leaves, and the earth is 

 baked. It appears probable that the winter range of crinitus, which 

 is in the moist lowlands, overlaps that of cinerascens but little', if any. 



157. Myiarchus nuttingi Ridgway. 



Three were secured at El Rancho, where they were found on the 

 dry hillsides, in company with the last species. Two others were 

 taken at San Jose. The El Rancho specimens have, at most, only 

 a trace of dusky at the tip of the inner web of the outer rectrices. 

 Those from San Jose" have nearly a third of the width of this web 

 lying next to the rachis, dusky. All of the rectrices, of these latter 

 specimens have a conspicuous dusky line on the inner web, and thus 

 resemble the specimen mentioned by Nelson*, which came from "the 

 boundary line between Nicaragua and Honduras, 180 miles from the 

 Pacific coast." Except in this particular, there does not appear to 

 be any difference between the birds from the two localities above 

 named. Iris dark brown; bill dark horn color; feet black. 



158. Myiarchus mexicanus (Kaup). 



A single example was collected at Los Amates. 



159. Myiarchus lawrenceii (Giraud). 



A common species in moist situations up to at least 5,000 feet. 

 Seventeen specimens were obtained, representing the following local- 

 ities: Los Amates, Lake Amatitlan, Lake Atitlan, Patulul and San 

 Jose. Two of these specimens, taken at Lake Atitlan in February, 

 show comparatively little contrast between pileum and back. These 

 were probably migrants from Mexico, as they agree quite closely 

 with a Nuevo Leon specimen. All the rest, including an April bird 

 from Lake Atitlan, are intermediate in size and color between typical 

 lawrenceii and nigricapillus , one from Los Amates, No. 22,741, being 

 decidedly nearer the latter form than the former. Iris dark brown; 

 bill and feet black. 



160. Tyrannus verticalis Say. 



Three were collected at El Rancho, where they were rather com- 

 mon in January, and another at Patulul. Iris dark brown; bill and 

 feet black. 



*Proceedings of the Biological Society of Washington, vol. xvii (1904), p. 38; North American 

 Mainland Myiarchus. 



