74 



captivity, the Vireos require much more than that. Probably the wear and tear 

 caused by their constant activity compels them to consume more than most other 

 birds of their size. These birds and the Flycatchers, like the Hawks and Owls, and 

 some others, have the habit of disgorging pellets composed of the indigestible por- 

 tions of their food. 



VIEEOS. 



Description, 



EED-EYED VIREO. 



Crown slaty gray, edged with blackish line, a conspicuous white line over eye; 

 below this a dusky stripe through eye; rest of the upper parts light olive green; 

 no wing bars. Under parts white, faintly shaded along sides and on lower tail 

 coverts with olive; eyes red. No spurious quill. 



L., 6.20; W., 3.20; T., 2.20. 



Nest, pensile, suspended from a forked branch of a tree or bush. Eggs, four, 

 or five, white, with a few brown or blackish spots about the larger end. 



PHILADELPHIA VIEEO. 



Upper parts olive green, brightest behind; crown sometimes grayish; a dull 

 white line over the eye : wings and tail edged with olive green ; under parts pale 

 yellowish; nearly white on throat and belly. No obvious wing bars; no spurious 

 quill. 



L., 4.75; W., 2.60; T., 2.00. 



Nest, pensile, suspended from a forked branch of a tree or bush. Eggs, four, 

 similar to those of the Eed-eyed Vireos. 



WAEBLING VIEEO. 



Upper parts, ashy olive green, wings and tail brownish edged with olive green ; 

 first primary very short, not more than 1.00 ; under parts white, more or less washed 

 with yellowish. No wing bars. 



L., 5.75; W. 2.85; T., 2.20. 



Nest, pensile, suspended from the forked branch of a tree. Eggs, three or four, 

 white, with a few spots of brown or blackish at the larger end, 



YELLOW-THEOATED VIEEO. 



Upper parts bright olive green, changing to gray on the rump and upper tail 

 coverts; greater and middle wing coverts tipped with white, forming two distinct 

 wing bars ; outer web of inner secondaries white ; below bright yellow ; belly and 

 under tail coverts white; superciliary line and ring round eye yellow; tail dusky, 

 nearly all the feathers with white edging; no spurious quills. 



L., 6.00; W., 3.00; T., 2.25. 



Nest, pensile, suspended from a fork in a bush or low tree. Eggs, four or five, 

 white, with a few spots of dark brown or blackish chiefly at the larger end. 



WHITE-EYED VIEEO. 



Upper parts bright olive green, more or less washed with grayish; greater and 

 middle wing coverts tipped with yellowish white, forming two distinct wing bars; 

 outer web of inner secondaries whitish ; lores and eye ring yellow ; throat white or 



