BIRDS OF NEW YORK 193 



Empidonax flaviventris (W. M. & S. F. Baird) 

 Yellow-bellied Flycatcher 



Plate 68 



Tyrannula flaviventris W. M. & S. F. Baird. Proc. Acad. Nat. Sci. Phila. 



1843. 1:283 



Muscicapa flaviventris DeKay. Zool. N. Y. 1844. pt 2, p. 113 

 Empidonax flaviventris A. O. U. Check List. Ed. 3. 1910. p. 214. No. 463 

 empidonax, Gr., meaning gnat king; flaviventris, Lat., yellow-bellied 



Description. Upper parts olive green, nearly uniform in color, but 

 the wings with lighter bars and edgings; under parts yellow; sides of breast 

 somewhat washed with grayish. 



This species is one of our four little flycatchers which can be identified 

 unmistakably at sight, its nearly uniform yellow under parts and olive 

 green upper parts being an infallible guide. 



Length 5.4-5.8 inches; extent 8.6; wing 2.45-2.75; tail emarginate 

 2-2.3; bill from nostril .31; width at base .26; tarsus .66. 



Distribution. The Yellow-bellied flycatcher inhabits eastern North 

 America from Alberta, northern Quebec and Newfoundland to North 

 Dakota, Michigan, New York and the mountains of Pennsylvania, and 

 winters from southern Mexico to Panama. In New York it is a transient 

 visitant, fairly common in most portions of the State, arriving from the 

 5th to the i Qth of May, usually by the loth, and passing on to the breeding 

 grounds from May 3Oth to June loth. In the fall the southern migration 

 begins from the 4th to the 2Oth of August and the last have passed us 

 from the 2d to the i8th of September. Our Adirondack party found 

 them nesting in July on the damp slopes of the Geological Cobble, Indian 

 Head, Skylight and Mt Marcy; and after the first week of August we 

 found them more abundant about Elk lake, Boreas pond and similar locali- 

 ties. This flycatcher has also been reported as spending the summer at 

 Tully, N. Y., by Mr J. A. Dakin, and at Peterboro (June isth) by Mr 

 Gerritt S. Miller; also reported as a summer resident of Granville, Wash- 

 ington county, by Mr F. T. Pember, and near Buffalo by Mr Ottomar 

 Reinecke. In the Canadian zone of New York it is a fairly common summer 

 resident, but is somewhat local in distribution inhabiting mostly the damp 

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