38 MR. GAMBEL ON THE BIRDS OF CALIFORNIA. 



New Mexico, thence through the ranges of the Rocky Mountains to California, 

 where, particularly during winter, the young birds are found in large flocks, and 

 generally in the tops of trees. In habits as well as appearance they much resemble 

 the yellow Rump, .S. coronata, and like them also, display a great deal of familiarity, 

 enterino- the towns, and resorting to gardens and fence rows, and even the corrals of 

 the houses ; frequently, also, descending to the ground with the Blackbirds and 

 Sparrows. 



SYLVANIA, Nuit. 



45. S. pusiLLA, (Wils.) Nutt. Green Black-capped Flycatcher, 



Wilsonia pusilla, Bonap. 

 Myiodtjocte.s Wilsoni, Aud. 

 This pretty little Sylvan Flycatcher is common both in the Rocky Mountains and 

 California. 



CULICIVORA, Swains. 



46. C, CCERULIA, (Lath.) Swains. Blue-grey Flycatcher. 

 Abundant in Upper California. 



MYIOBIUS, Graij. {Tyrannula, Swains) 



47. M. PUSILLA, (Swains.) Gray. Little Pewee Flycatcher. 



Tyrannula pusilla, Swains. 

 I observed this species to be plentiful about the Pueblo de los Angeles in Upper 

 California, where most probably they breed. During the month of April, it frequented 

 the hedges of vineyards and neighbouring trees, uttering a sweet and considerably 

 varied song. The following description of an adult killed there in the spring, may 

 be useful, to show that it is the same bird as that described by Swainson in the 

 Arctic Zoology, and found in Labrador by Audubon. Above greenish olive ; wings 

 and tail dusk}'- brown, the coverts tipped with dull white, forming two bands on the 

 wing ; the tertiaries also broadly edged with the same. Below yellowish, brightest 

 on the lower part of the throat and breast, and on the abdomen. Feet and legs bright 

 lead-blue. A yellowish ring around the eye. Upper mandible black, the lower 

 pale flesh colored; inside of both orange. Tail even, 2h inches; wings. 2f inches. 

 Tarsus I. Bill along ridge about I, from angle of mouth I. Total length 5 inches. 

 First quill a little shorter than the 6th; 3d and 4th nearly equal. The bird has a 

 conspicuous crest. 



48. M. SAYA, (Bonap.) Gxq.j. Black-tailed Pewee. 



Tyrannula pallida, Swains. Syu. Bds. of Mexico. 

 This species, common throughout the western regions of our country, is particu- 

 larly so in California and the northern provinces of Mexico. Its manners much 

 resemble those of the common Pewee, frequenting the neighbourhood of towns, weedy 



