Perching Birds Chiefly Dull Colored. 



623. Black-whiskered Vireo {Vireo calidris barba- 

 tulus). L. 6. Ads. A dusky streak on either side of the 

 throat, crown slate without a black border; back olive- 

 green; below white, lower belly, under -tail- and under 

 wing-coverts yellowish; no wing-bars. Notes. Re- 

 semble those of No. 624 but song more emphatic and 

 hesitating. 



Range. — Breeds in Cuba, Bahamas and southern Florida; winters 

 in Central America. 



\ 624. Red-eyed Vireo {Vireo olivaceus). L. 6.2. 



\\Ads. Crown slate, on either side a narrow black 

 border; a white line over eye; above olive-green; below 

 white; under wing-coverts sulphur; no wing-bars; 

 no dusky streaks on throat. Notes. Call, a petulant, 

 complaining whang; song, a broken, rambling recitative 

 "you see it — you know it — do you hear me? — do you 

 believe it?" 



Range. — Eastern United States, west to the Rockies and British 

 Columbia, east of Cascades; breeds from the Gulf States to Labrador, 

 Manitoba, and British Columbia; winteis in Central and South Amer- 

 ica. 



632. Hutton Vireo {Vireo huttoni). L. 4.8. Ads. 

 Underparts dusky grayish white with a faint yellow 

 tinge; above dusky olive-green; lores and eye-ring 

 grayish, not conspicuous; two white wing-bars. Notes. 

 A piping whistle like the call of a young ^bird, pee-yer f 

 pee-yer; and a hoarse whistle oh-my, oh-my, oh-my. 



Range.— California, west of Sierra; resident. 



632a. Stephen Vireo {V. h. stephensi). Similar to 

 No. 622, but grayer above, whiter below, wing-bars 

 broader. 



Range.— Mexican boundary from western Texas to southeastern 

 California. 



632c. Anthony Vireo (V. h. obscurus). Similar to 

 No. 632, but darker, and averaging slightly smaller. 



Range.— "Pacific coast, from Oregon to southern British Columbia; 

 south in winter to California." (A. O. U.) 



647. Tennessee Warbler {Helminthophila peregrina) . 

 L. 5. No wing-bars; little or no white in tail. Ad. <$. 

 Head bluish gray; a whitish line over eye; back olive- 

 green; below grayish white. Ad. 9- Gray of head 

 with more or less olive-green; stripe over eye and un- 

 derparts yellower. Yng. Similar to 9 , but entirely 

 bright olive-green above; yellower below. Notes. 

 Song scarcely distinguishable from that of the Chip- 

 ping Sparrow, but first two syllables ftwjft instead of 

 chip. (Jones.) 



p^ange —Eastern North America, west in migrations to the Rocky 

 Mountains; breeds from New Brunswick, northern New England, 

 northern New York, and Minnesota, north to Quebec and Alaska; 

 winters in Central and northern South America. 



747. Kennicott Willow Warbler ( Phyllopseustes 

 borealis). L. 5. Ads. Above olive-green; below 

 white tinged with yellowish, sides greenish; a whitish 

 line over eye; a narrow whitish wing-bar; no white in 

 tail. Notes. Call, a monotonous d{it\ song, resembles 

 trill of Redpoll. (Seebohm.) 



Range.— Asia, east to western Alaska. 



212 



