BIRDS OF ESSEX COUNTY. 30I 



291 [685] Wilsonia pusilla (Wils.). 

 Wilson's Warbler. 

 Uncommon transient visitor; May — to 30 ; September 13 to 27. 



292 [686] Wilsonia canadensis (Linn.). 

 Canadian Warbler. 



Common transient visitor, rare summer resident; May 16 to June 2; 

 August to September 13. 



Dr. T. M. Brewer 1 stated that the Canadian Warbler bred every summer 

 in Essex County and that he had two sets of eggs taken in Lynn. I found the 

 bird on June 2d, 1877, at Magnolia, and Mr. Hoffmann found one singing there 

 on June nth, 1893. It is an example of a bird of the Canadian zone breeding 

 in the County. 



293 [687] Setophaga ruticilla (Linn.). 

 American Redstart. 



Abundant summer resident ; May 4 to September 21. 



Eggs : May 29 to June 2 1 . 



The abundance of this species and the great individual variation in its song 

 often make it a nuisance to the ornithologist who may be temporarily misled 

 in his search for rare Warblers. "The Little Torch " is, however, easily seen, 

 and we can readily pardon the interruption. It is a help to me to think of its 

 song as sibilant and insistent, which it generally is. Mr. F. B. McKechnie tells 

 me that he saw a Redstart just outside the County line at Lowell, on October 

 7th, 1904. 



IT. M. Brewer: Bull. Nuttall Orn. Club, vol. 3, p. 139, 1878. 



