TYRANNIDE, FLYCATCHERS.—GEN. 108. 173 
5th quill; 1st shorter than 6th; 3d and 4th generally rather the longest. 
Eastern North America, very abundant, in open places, fields, along streams, 
ete.; one of the very earliest arrivals in spring, a late loiterer in the fall; 
winters in the Southern States. Voice short, abrupt, unlike the drawling 
note of the wood pewee. WILS., ii, 78, pl. 13; Nurr., i, 278; Auvp., i, 
Pe EMCO EED swLOt amet tse sia se! Se sus osha RUSOUSS 
; 108. Genus CONTOPUS Cabanis. 
* .* With the feet extremely small, the tarsus shorter than the middle toe and 
claw; the tarsus, middle toe and claw together, barely or not one-third as long as 
the wing; the bill flattened, very broad at base; the pointed wings much longer 
than the emarginate tail. Medium sized and rather small species, brownish- 
olivaceous, without any bright colors, or very decided markings; the coronal 
feathers lengthened and erectile, but hardly forming a true crest. Fig. 113¢. 
* Species 7-8 long, with a tuft of white fluffy feathers on the flank. 
Olive-sided Flycatcher. Dusky olivaceous-brown, usually darker on the 
crown, where the feathers have blackish centres, and paler on the sides; 
chin, throat, belly, crissum and middle line of breast, white, more or less 
tinged with yellowish; wings and tail blackish, unmarked, excepting incon- 
spicuous grayish-brown tips of the wing coverts, and some whitish edging 
on the inner quills; feet and upper mandible black, lower mandible mostly 
yellowish. The olive-brown below has a peculiar streaky appearance hardly 
seen in other species, and extends almost entirely across the breast. Young 
may have the feathers, especially of the wings and tail, skirted with rufous. 
Wing 3g-44, remarkably pointed ; second quill longest, supported nearly to 
the end by the first and third, the fourth abruptly shorter; tail about 3; 
tarsus, middle toe and claw together only about 14; bill 2-3. North Amer- 
ica, apparently nowhere very abundant. Nurr., i, 282; 2d ed. 298; Aup., 
meerplocs D., 1883. Coorira23. 2). ~ . . = « BOREALIS. 
Coues’ Flycatcher. Somewhat similar; colors more uniform and more 
clearly olive; below, fading insensibly on the throat and belly into yellowish 
white, and lacking the peculiar streaky appearance: cottony tufts on the 
flanks less conspicuous; wing-formula entirely different; second, third and 
and fourth quills nearly equal and longest, first abruptly shorter; tail longer, 
about 32. Mexico; north to Arizona. Cas., Mus. Hein. ii, 72; Cours, 
Proe. Phila. Acad. 1866, 60; Enu., pl. 18; Coop., 324. . . PERTINAX. 
** Species under 7 long, without an evident cottony white tuft on the flank. 
Wood Pewee. Olivaceous-brown, rather darker on the head, below with 
the sides washed with a paler shade of the same reaching nearly or quite 
across the breast ; the throat and belly whitish, more or less tinged with dull 
yellowish; under tail coverts the same, usually streaked with dusky ; tail 
and wings blackish, the former unmarked, the inner quills edged, and the 
greater and middle coverts tipped, with whitish; feet and upper mandible 
black, under mandible usually yellow, sometimes dusky. Spring specimens 
are purer olivaceous; early fall birds are brighter yellow below; in 
