156 [Feb., 1847. 



appearance {hey resemble the Yellow Rump, S. coronata, and like them 

 also, display a great deal of familiarity, entering the towns, and resorting 

 to gardens and fence rows, and even the corals of the houses ; frequently 

 also, descending to the ground with the Blackbirds and Sparrows. 



Sylvania pusilla. Wils. (Nutt.) Green Black-capped Flycatcher. 



Myiodyoctes Wilsonii, Aud. 



This pretty little Sylvan Flycatcher is common both in the Rocky Moun- 

 tains and California. 



Culicivora coerulia, Lath. Blue-grey Flycatcher. 



Abundant in Upper California. 



Tyrannula pusilla. Swains. Little Pewee Flycatcher. 



I observed this species to be plentiful about the Pueblo delos Angeles in 

 Upper California, where most probably they breed. During the month of 

 April, it frequented the hedges of vineyards and neighboring 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 that found 

 in Labrador by Audubon. Above greenish olive; wings and tail dusky 

 brown, the coverts tipped with dull white, forming two bands on the wing: 

 the tertiaries also broadly edged with the same. Belowyellowish, brightest 

 on the lower part of the throat and breast, and on tbe 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, 2 \ 

 inches ; wings 2| inches. Tarsus |. Bill along ridge about f , from angle 

 of mouth f . Total length 5 inches. First quill a little shorter than the 

 6th ; 3rd and 4th nearly equal. The bird has a conspicuous crest. 



Tyrannula Saya, Bonap. Black-tailed Flycatcher. 



T. pallida, Swans. Syn. Bds. of Mexico. 



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

 particularly so in California and the northern provinces of Mexico. Its 

 manners much resemble those of the common Pewee, frequenting the neigh- 

 borhood of towns, weedy hill sides and plains, darting from twig to twig 

 after passing insects, jerking its tail, and merely uttering a single weak and 

 singing chip, or an occasional guttural twitter, but very different from the 

 harsh angry tship of the T. nigricans, with which it is so often associated. 

 It breeds in California, and no doubt like its dark companion, about the 

 houses and Missions, but I did not find its nest. 



Tyrannula nigricans, Swains. Black Pewee. 



This bird is abundant in California, and like our common Pewee is particu- 

 larly fond of being near the habitations of man: with the utmost confidence, it 

 is seen familiarly flying about the corals and gardens,and even the very doors; 

 over which, on a projecting beam, about the middle of April, I found its nest. 

 It was large for the size of the bird, and consisted of a solid round mason work 



