6 JOURNAL OF MAINE ORNITHOLOGICAL SOCIETY. 



Contributions to the Life History of the Yellow 



Warbler 



Subgenus Dendroica (Gray). 



(Taken from the Birds of Maine by permission of the author. 

 Oka W. Kxu;ht). 



Dendroica astiva (Gmel.). Yellow Warbler ; Summer Yellow- 

 bird ; Summer Warbler : Golden Warbkr ; Blue-eyed Yellow 

 Warbler ; Spy-about. 



Plumage of adult male : Above bright greeni.sh yellow, becom- 

 ing stronger on the crown ; below golden lemon-yellow, l>rightly 

 streaked with pale chestnut on the throat, breast and sides; wings 

 edged with and inner veins of tail feathers bright yellow ; tail 

 fuscous. Plumage of adult female : Slightly paler than that of 

 male ; streaks on the throat, breast and sides few and not so bright ; 

 wings slightly more fuscous. Immature plumage : No streaks on 

 breast, throat or sides in juvenal plumage, becoming rather spar- 

 ingly streaked in first winter plumage ; dull lemon-yellow below. 

 Wing, 2.30 to 2,60 : culmen, 0.41 ; tarsus, 0.73. 



CtEoGRAPHiCAL DisTRiBiTiON. — The breeding range includes 

 North America in general, exclusive of Florida, Georgia, the north 

 Pacific coast (inhabited by local race) and southwestern I'nited 

 States (local race there) : including local subspecies and varieties, 

 the species breeds northward to 70 degrees latitude ; winter range, 

 Central America. United States of Colombia. Peru, and Mexico. 



County Records. — Androscoggin ; common summer resident 

 (Johnson). Aroostook; summer resident (Knight). Cumberland; 

 common summer resident (Mead). Franklin; common summer 

 resident (Swain). Hancock; common summer resident (Knight). 

 Kennebec; abundant summer resident (Gardiner Branch), Knox ; 

 sununcr (Rackliff). Oxford; abundant at Norway (Verrill, L. B. 

 N. P. IC. I. 3. p. 136 et seq.). Penobscot; very connnon sunnner 

 resident (Knight). Piscataquis; rare summer resident (Homer). 

 Sagadahoc; common summer resident (Spinney), Somerset; 



