BLACK-THROATED GREEN WARBLER. 



{Sylvia vir ens, Latham. Wilson, ii. p. 137. pi. 17. fig. 3. Green 

 Warbler, Pennant's Arct. Zoology, vol. ii. No. 297.) 



Sp, Charact. — Yellowish-green ; front, cheeks, sides of the neck, 

 and line over the eye, yellow ; beneath whitish ; chin and throat 

 to the breast black ; 2 white bajs on the wings, which, as well as 

 +he tail, are dusky • the 3 lateral tail-feathers marked with white. 

 — Female with the chin yellow, and the throat blackish, tinged 

 with yellow. 



This rather rare species arrives from its tropical win- 

 ter-quarters in Pennsylvania towards the close of April 

 or beginning of May. About the 12th of the latter month 

 it is seen in this part of Massachusetts ; but never more 

 than a single pair are seen together. At this season, a 

 silent individual may be occasionally observed, for an hour 

 at a time, carefully and actively searching for small cater- 

 pillars and winged insects, amidst the white blossoms of 

 the shady apple tree, and so inoffensive and unsuspicious 

 is the little warbler, that he pursues, without alarm, his 

 busy occupation, as the spectator, within a iew iaet of 

 him, watches at the foot of the tree. While thus harm- 



