BIRDS — TYRANNINAE EMPIDONAX TEAILLII. 



193 



Comparative measurements of species. 



EMPIDONAX TKAILLII, Baird, 



Traill's Flycatcher. 



Muscicapa traillii, Audcbon, Orn. Biog. I, 1832, 236 : V, 1839, 426 ; pi. 45.— 1b. Syn. 1839, 43.— Is. Birds Amer. 1 



1840,'234 ; pi. 65. 

 Tyrarmula traillii. Rich. List, 1837. — Bonaf. List, 1838. 

 Tyrarmm traillii, Ncttall, Man. I, 2d ed. 1840, 323. 



Sp. CH.-^Third quill longest; second scarcely shorter than fourth; first shorter than fifth, about .35 shorter than the 

 longest. Primaries about .75 of an inch longer than secondaries. Tail even. Upper parts dark olive green ; lighter under the 

 wings, and duller and morb tinged with ash on nape and sides of the neck. Centre of the crown feathers brown. A pale 

 yellowish white ring (in some specimens altogether white) round the eye. Loral feathers mixed with white. Chin and throat 

 white ; the breast and sides of throat light ash tinged with olive, its intensity varying in individuals, the former sometimes 

 faintly tinged with olive. Sides of the breast much like the back. Middle of the belly nearly white ; sides of the belly, abdomen, 

 and the lower tail coverts sulphur yellow. The quills a,nd tail feathers dark brown, as dark (if not more so) as these parts in 

 C. virens. Two olivaceous yellow white bands on the wing, formed by the tips of the first and second coverts, succeeded by a 

 brown one ; the edge of the first primary and of secondaries and tertials a little lighter shade of the same. The outer edge of 

 the tail feathers like the back ; that of the lateral one rather lighter. Bill above dark brown ; dull brownish beneath. Length 

 nearly 6 inches ; wing, 2.90 ; tail, 2.60. 



Hob. — Eastern United States and south to Mexico. 



The young bird is similar, but the colors are duller. The markings on the wings are more 

 ochraceous. 



The body in this species is stout ; t^il short, very nearly even ; feathers broad, distinctly 

 25 b 



