488 NORTH AMERICAN BIRDS. 



of lower parts usually more or less stained with pale 

 olive-yellowish, especially on sides. Young in first 

 autumn : Upper parts entirely olive-green ; lower parts 

 (except under tail-coverts) strongly tinged with olive- 

 yellow (chin, throat, chest, and sides sometimes uni- 

 form pale olive-yellow or greenish sulphur-yellow). 

 Hob. Northern North America, east of Rocky Moun- 

 tains, breeding from Maine, northern New York, etc., 

 to Fort Simpson and Hudson's Bay; migrating 

 through eastern United States, chiefly west of Alle- 

 ghanies (west to Rocky Mountains), south through 

 eastern Mexico and Central America to Colombia. 



647. H. peregrina (WiLS.). Tennessee Warbler, 

 c*. Under tail-coverts yellow ; axillars yellow (except in H. vir- 

 ginice) ; adult male (sometimes female also) with a con- 

 cealed patch of orange-rufous or chestnut on crown ; first 

 quill shorter than fourth. 



f 1 . Axillars and under wing-coverts yellow; upper parts 

 olive-green (the head and neck sometimes ashy) ; 

 lower parts chiefly yellowish. 



g l . No distinct orbital ring; lower tail-coverts pale, 

 rather greenish, or olivaceous, yellow, the longer 

 ones with a concealed grayish central streak ; 

 rest of lower parts pale yellow, more or less 

 tinged or indistinctly streaked with olivaceous 

 or olive-grayish ; crown-patch, when present, 

 orange-rufous. 



h l . Above dull olive-green, sometimes tinged with 

 gray, especially on head; lower parts pale 

 yellow (becoming white on anal region), the 

 darker indistinct streaks grayish; length 

 4.60-5.30, wing 2.31-2.52 (2.41), tail 1.92-2.10 

 (1.98). Eggs .63 X -49, white, or creamy 

 white, finely speckled, chiefly on larger end, 

 with reddish brown. Hob. Northern North 

 America, breeding from Rocky Mountains to 

 coast of Alaska (north of the peninsula) and 

 Mackenzie River district; migrating south 

 through Mississippi Valley (more sparingly 

 east of Alleghanies) to south Atlantic and 



Gulf States and eastern Mexico 646. H. 



celata (SAY). Orange-crowned Warbler. 

 h*. Above bright olive-green, beneath bright green- 

 ish yellow (nearly pure gamboge-yellow along 

 median line), the darker indistinct streaks 



