Appendix. 



68. Allen's Hummingbird ; Selasphorus alleni 

 (Hensh.). 



Very similar to the preceding, females especially 

 alike. Rufous on back largely restricted, the 

 golden green prevailing. The tail-feathers of 

 the rufous hummingbird are very broad, and the 

 second from the middle has a conspicuous notch. 

 In the Allen's hummingbird the tail-feathers are 

 very narrow, the outermost pair being fine and 

 sickle-shaped. A common summer resident 

 over much of the State, but often confounded 

 with the preceding. 



69. Calliope Hummingbird ; Stellula calliope 

 Gould. 



Size very small. No crown ornament. Gorget 

 of narrow elongated feathers, with white bases 

 and metalHc violet or lilac tips. Below white, 

 the sides glossed with green. A summer 

 resident of the Sierra Nevada Mountains. 



TYRANT FLYCATCHER FAMILY. 



Mostly small, dull colored birds, although two cf 

 our species are larger and have bright crown- 

 patches. Colors generally brownish or ohve- 

 gray or greenish, characteristically unstreaked. 

 Bill broad and flattened, with large bristles at its 

 base. Feet small. Most species sit very 

 quietly in repose, fluttering from their perches 

 into the air after flying insects. 



70. Kingbird; Tyr annus tyrannus (Lmn.). 

 This common eastern bird is rare in California, 



only occasionally straying across the Sierra 



208 



