560 GEOLOGICAL SURVEY OF NEW JERSEY. 



is duller. Length, 5f inches ; tail, 2J inches. Winters in the 

 Bahamas. Summer residence unknown. Rare. Seen during 

 migration, 



D. discolor, Vieill. Prairie Warbler. 



Olive yellow ; patch of red spots on back ; forehead, wing 

 bars and belly, yellow ; streaked below ; sides of head black ; 

 sexes alike. Length, 4f inches ; tail, 2 inches. Chieily in ever- 

 green thickets. 



"Not very abundant. More numerous during some years 

 than others. Always remains during the summer. Frequents 

 old, uncultivated fields, spending much of its time upon the 

 ground. Sings more, and with a greater variation of notes, than 

 warblers generally. Remains till October." 



D. palmarum, Gmel. Yellow Redpoll Warbler. Palm Warbler. 



Brownish olive above, somewhat streaked ; rump brighter ; 

 crown bright chestnut ; under parts yellow, with brown streaks ; 

 no obvious wing bars (brownish) ; sexes alike; tail spots square 

 and at ends of two outer tail feathers only; sides reddish 

 streaked. Length, 5 inches ; tail, 2J inches. 



"Arrives early in April, and in loose flocks roam restlessly 

 about dwarfish trees and blackberry briars, frequently in com- 

 pany with other species. None remain during the summer. 

 Re-appear late in August and during September, when they are 

 more scattered and frequent wet, marshy grounds." 



D. palmarum, var. hypochrysea, Ridg. Yellow Palm Warbler. 



Larger and more brightly colored ; entire lower parts bright 

 yellow ; upper parts less grayish, but richer olive than in pre- 

 ceding. Length, 5J inches; tail, 2^ inches. Breeds in the 

 Labrador region ; southward to Gulf States in winter. 



SBIURUS, Swains. 

 S. aurocapillus, L. Golden-crowned Thrush. Oven Bird. 



Bright olive green ; white below ; sharply spotted on breast 

 and sides; crown orange brown, with two black stripes. 

 Length, 6^ inches ; tail, 2J inches. Builds on the ground or in 

 old logs,. stumps, &c., an oven-shaped nest; has a loud, ringing 

 Hote ; is largest of true warblers ; lives in thickets, but spends 

 " most of its time on the ground." — Jordan. 



