250 FLYCATCHERS. 



rapid twitching of the tail. A more peculiar note is a louder pee-e- 

 yuk. The bird seems to articulate this note with difficulty, with bill 

 pointed upward and wings trembling like a fledgling begging for food, 

 tsometimes you may hear only the first call, sometimes only tin- 

 second, while on other occasions the two may be uttered alternately. 

 A rarer note may be heard when the bird makes a short, fluttering 

 flight. It resembles the soft murmuring of whistling wings. 



466a. Empidonax traillii (And.). TRAILL'S FLYCATCHER. Ad. 



I'l'jxT parts between olive-green and olive or olive-broicn ; wings and tail 

 fuscous; greater and lesser wing-coverts tipped with brownish ashy ; under 

 part." whitish, washed with dusky grayish on the breast and sides and pale 

 yellowish on the belly ; throat pure white ; upper mandible black, lower 

 inaudible whitish or flesh-color. Im. Similar, but wing-bars ochrncequs- 

 bufl' and under parts slightly yellower. L., G-O'J ; W., 2-87 ; T., 2-33 ; B. I'rom 

 K, -35. 



Remarks. This is the brownest of our small Flycatchers. The upper 

 parts have an evident tinge of brown or olive-brown, a color entirely want- 

 ing in the Aeadiau and Yellow-bellied Flyeutehers. In this respect it resem- 

 bles the much smaller Least Flycatcher. 



Range. North Ameriea; breeds from Arizona, Missouri, southern Illinois, 

 northern New England, and casually Connecticut, north to New Brunswick 

 and Alaska; winters in Central America. 



Washington, irregularly common T. V., May 10 to May 28; Aug. 15 to 

 Sept. -j:.. Sinir Si iii;, rare T. V., May 19 to May 31 ; A in:. -JV. Cambridge, 

 rare T. V.. May -'.'. t May .",1 ; Aiiir. 



Ifett, of coarse Lrrasses, plant down, and plant fibers, lined with fine L" 

 in the crotch of a small bush <>r sapling near the irroimd. /.W. three to 

 four, creamy white, with cinnamon-brown markings about the larger end, 

 73 x -54. 



While the Yollow-bollicd Flycatcher is distinctively a bird c* the 

 deep woods, this inure abundant Flycatcher in its summer home re- 

 sorts to the alder patches of the open country and is seldom found far 

 from their protecting shade. It flits restlessly about, keeping well out 

 of sight below the waving tops of the bushes, and its presence is be- 

 trayed only by a single ptp of alarm that in no way resembles the 

 mournful wail of the species just mentioned. It, too. is silent when 

 migrating, and on its breeding grounds sings but little, so that if it 

 did not take pains to call out to every one who passes it would not be 

 noticed among the rustling alders. The song most resembles that of 

 the Acadian Flycatcher, an i"- :>'<' -I'-fi/t. with stress on the rasping 

 z<~'~. the latter part more music-al. The performer jerks out the notes 

 rapidly, doubling himself up and fairly vibrating with the explosive 

 effort. J. DWIOIIT, Ju. 



NOTE. -In The Auk for April. is<i.", Mr. William Brewster shows that the spe- 

 cific name pusillua (Swains.), hitherto applied to the western form of this Fly- 



