BIRDS OF EASTERN MASSACHUSETTS. 103 



35. Dendroeca coerulescens, Baird. — Black-throated 

 Blue Warbler. Rare during the migrations. Have taken 

 it from May loth to 24th. I have always found it in mixed 

 woods. " Although not generally common, I found it quite 

 plentiful during the season of 1869."* 



36. Dendroeca coronata, Gray. — Yellow-rumped 

 Warbler, "Myrtle-Bird." Very abundant during the migra- 

 tions. Arrives from April 20th to May 5th. I have seen it 

 from April 18th until the 1st of June. Appears about the 

 last week of September in great numbers, in straggling, de- 

 tached flocks ; remains until November 1st. Perhaps some 

 remain during the winter, at which time 1 have met with 

 it in great numbers in Florida. 



37. Dendroeca castanea, Baird. — Bay-breasted War- 

 bler. Exceedingly rare. Possibly breeds, as I have taken 

 a male on June 19, 1867. Arrives from May 17th to 22d. 

 I have never met with this species in autumn. (See D. 

 striata.) Mr. Brewster says that he has taken it in Wolf- 

 boro', New Hampshire, in May. Frequents the woods every- 

 where. 



38. Dendroeca BlackburniEe, Baird. — Mrs. Black- 

 burrCs Warbler, Blackburnian Warbler. Tn some seasons not 

 uncommon during the migrations. Arrives from May 17th 

 to 27th ; departs for the south in September. Found 

 everywhere, both in the woods and on apple-trees. 



39. Dendroeca pina, Baird. — Pine-creeping War- 

 bler, Pine Warbler. Common during the migrations. A 

 few breed. Arrives from April 9th to 2 2d ; departs in 

 September. Found everywhere. 



40. Dendroeca Pennsylvanica, Baird. — Chestnut- 

 sided Warbler. Common summer resident ; breeds com- 

 monly. Arrives from May 5th to 19th ; departs about the 

 second week in September. Found everywhere. 



41. Dendroeca striata, Baird. — Black-polled War- 



* Mr. W. Brewster, in MS. 



