[Illustration: 616.]
=616. Bank Swallow= (_Riparia riparia_). L. 5.2. _Ads._ Below white, a broad grayish brown band across the breast; above grayish brown.
_Yng._ Similar, but brown areas more or less tipped with rusty.
Range.--Northern hemisphere: in America, breeds from northern New Jersey, Kansas, and southern California, north to Labrador, and Alaska; winters south to Brazil.
[Illustration: 617.]
=617. Rough-winged Swallow= (_Stelgidopteryx serripennis_). L. 5.5.
_Ads._ Above grayish brown; below grayish white, whiter on belly; barbs on outer vane of outer primary recurved. _Yng._ Plumage more or less tipped with rusty.
Range.--United States; breeds from Mexico north to Massachusetts, Manitoba, and British Columbia; winters in Central America.
[Illustration: 623.]
=623. Black-whiskered Vireo= (_Vireo calidris barbatulus_). 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._ Resemble those of No. 624 but song more emphatic and hesitating.
Range.--Breeds in Cuba, Bahamas and southern Florida; winters in Central America.
[Illustration: 624.]
=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; winters in Central and South America.
[Illustration: 632.]
=632. Hutton Vireo= (_Vireo huttoni_). L. 4.6. _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_, _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.)
[Illustration: 647.]
=647. Tennessee Warbler= (_Helminthophila peregrina_). L. 5.
No wing-bars; little or no white in tail. _Ad._ [Male]. Head bluish gray; a whitish line over eye; back olive-green; below grayish white.
_Ad._ [Female]. Gray of head with more or less olive-green; stripe over eye and underparts yellower. _Yng._ Similar to [Female], but entirely bright olive-green above; yellower below. _Notes._ Song scarcely distinguishable from that of the Chipping Sparrow, but first two syllables _twip_ instead of _chip_. (Jones.)
Range:--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.
[Illustration: 747.]
=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 _dzit_; song, resembles trill of Redpoll. (Seebohm.)
Range.--Asia, east to western Alaska.
[Illustration: 625.]
=625. Yellow-green Vireo= (_Vireo flavoviridis_). L. 6.4. Resembling No. 624, but greener above, the sides heavily washed with greenish yellow.
Range.--Northern South America, north to the Lower Rio Grande.
[Illustration: 626.]
_626. Philadelphia Vireo_ (_Vireo philadelphicus_). L. 4.8. _Ads._ No distinct crown-cap; above olive-green; below yellowish; a whitish line over eye; no wing-bars. _Notes._ Resemble those of the Red-eyed Vireo but generally higher pitched; also a very abrupt, double-syllabled utterance with a rising inflection which comes in with the song at irregular intervals. (Brewster.)
Range.--Eastern North America; breeds from Maine, New Hampshire and Manitoba northward; winters in the tropics.
[Illustration: 627.]
=627. Warbling Vireo= (_Vireo gilvus_). L. 5.4; W. 2.8. _Ads._ Above grayish olive-green, crown slightly grayer but without distinct cap as in No. 624; a whitish line over eye but no black line above it; below white, the sides washed with yellowish; no wing-bars. _Notes._ Call, resembles that of the Red-eyed Vireo; song; a rich, firm, unbroken warble with an alto undertone.
Range.--Eastern United States, west to the Plains; breeds from Gulf States north to Hudson Bay region; winters in Mexico.
=627a. Western Warbling Vireo= (_V. g. swainsoni_). Similar to No. 627, but averaging smaller, W. 2.6, the bill more slender; upperparts, particularly crown, grayer.
Range.--Western United States, east to the Rockies; breeds from Mexico to British Columbia; winters in Mexico.
[Illustration: 631.]
=631. White-eyed Vireo= (_Vireo noveboracensis_). L. 5; W. 2.4.; B. .4. _Ads._ Eye-ring and lores yellow; iris white; above olive-green more or less washed with grayish; Below white, sides yellowish; two whitish wing-bars. _Notes._ Calls, varied, often harsh and scolding; song, an emphatic whistle _who are you, eh_? or _what's that you say?_, and a low medley often including imitations of the notes of other birds.
Range.--Eastern United States; breeds from Florida and Texas north to New Hampshire and Minnesota; winters from Florida to Central America.
=631a. Key West Vireo= (_V. n. maynardi_). Similar to No. 631, but bill heavier, sides averaging less yellow.
Range.--Southern Florida; resident.
=621b. Bermuda White-eyed Vireo= (_V. n. bermudianus_). Similar to No. 631, but wing shorter, 2.30; no yellow on sides. (Bangs and Bradlee.)
Range.--Resident in Bermudas.
=631c. Small White-eyed Vireo= (_V. n. micrus_). Smaller than No. 631, W. 2.2; averaging grayer above; sides with less yellow.