THE BIRDS OF NEW JERSEY. 287 



678 Oporornis agilis (Wilson). 

 Connecticut Warbler. 



Adult male. Length, 5.20-15. Wing, 2.75. Above, plain olive-green; fore- 

 head, sides of head, throat and breast, slate-gray ; rest of lower parts, pale 

 yellow ; a white ring around the eye. In autumn the top of the head is washed 

 with brown. 



Adult female. Similar, but gray areas tinged with brown. 



Young in first autumn. Similar to the adult female, but throat and breast 

 distinctly brown ; eye ring, buff. 



Common transient visitant in autumn; very rare in spring. 



Spring, May 20th; autumn, September 1st to October 2d. 



In autumn we find these birds in old fields along the edges of 

 woods and thickets, especially in thick growths of rag weed; when ap- 

 proached they fly up into trees and bushes and remain until the in- 

 truder has passed by when they return to their feast. They are ex- 

 traordinarily fat at this season. 



In spring the Connecticut Warbler is almost unknown east of the 

 Alleghanies ; one of the very few specimens taken at this season, 

 however, was obtained in New Jersey, by Mr. S. N. Rhoads, at Had- 

 donfield, May 20th, 1882 (Collection W. Stone). 1 



679 Oporornis Philadelphia (Wilson). 

 Mourning Warbler. 



Adult male. Length, 5-5.75. Wing, 2.40. Head, neck and breast, slate- 

 gray ; center of breast and bases of throat feathers, black ; rest of upper sur- 

 face, olive-green ; lower surface, bright yellow, olive on the sides. 



Adult female. Lacks the black on the breast and throat, while the gray is 

 paler below and more olive above. 



Young in first autumn. Similar to adult female, but duller. 



Very rare transient visitant. Spring, May 15th to 30th; autumn, 

 September 22d. 



Mr. Chapman had taken but one, at Englewood, up to 1889, 2 but 

 saw another May 22d, 1898. 3 At Morristown Messrs. Thurber and 



1 Abst. Proc. D. V. O. C., I., p. 6. 



2 Auk, 1889, p. 198. 



3 Abst. Proc. Linn. Soc., N. Y.. XL, p. 4. 



