286 MEMOIRS OF THE NUTTALL ORNITHOLOGICAL CLUB. 



261 [628] Vireo flavifrons Vieill. 

 Yellow-throated Vireo. 



Common summer resident ; May 6 to September 12. 



Eggs : May 24 to June 17. 



While passing through the old South Common at Ipswich I have some- 

 times heard the song of this bird and of the Red-eyed and Warbling Vireos. 



262 [629] Vireo solitarius (Wils.). 

 Blue-headed Vireo; Solitary Vireo. 



Uncommon summer resident, rather common transient visitor ; April 23 to 

 October 10. 



Eggs : May 19 to May 21. 



Mr. J. A. Farley tells me that this bird breeds not uncommonly in white 

 pine woods throughout the County. I have found it in early July in some pines in 

 Hamilton. It is an example of a bird of the Canadian zone. Its beautiful ring- 

 ing song always reminds one of the wild and cool northern woods. The song is 

 very varied with loud outbursts and sweet and tender low notes, and it resembles, 

 yet is very different from the peaceful and monotonous song of the Red-eyed 

 Vireo. 



263 [631] Vireo noveboracensis (GmeL). 

 White-eyed Vireo. 



Uncommon summer resident, locally ; May 20 to September 20. 



Eggs : May 22 to June 18. 



This is an example of a bird of the Upper Austral zone extending into the 

 Transition zone. Mr. W. A. Jeffries tells me that although it bred commonly 

 at Swampscott in the seventies and eighties, the clearing out of the underbrush 

 by the increase of population and by the Gypsy Moth Commission has diminished 

 its numbers. In his company on July 6th, 1904, I found one of these birds 



