BIRDS OF THE CAMBRIDGE REGION. 



17 



17. Song Sparrow. 



18. Lincoln's Sparrow. 



19. Swamp Sparrow. 



20. Fox Sparrow. 



2 1 . Towhee. 



22 



23 

 24 



25 



26 



27 

 28 

 29 



31 



32 

 33 



34 

 35 



37 

 38 

 39 



Indigo Bunting. 

 Scarlet Tanager. 

 Barn Swallow. 



Tree Swallow. 



Black and White Warbler. 



Nashville Warbler. 

 Orange-crowned Warbler. 

 Northern Parula Warbler. 



Black-throated Blue Warbler. 



Myrtle Warbler. 



Magnolia Warbler. 

 Chestnut-sided Warbler. 

 Bay-breasted Warbler. 

 Black-poll Warbler. 



Blackburnian Warbler. 

 Black-throated Green Warbler. 

 Yellow Palm Warbler. 

 Oven-bird. 



40. Water-thrush. 



4 1 . Mourning Warbler. 



Seven records for March, five for April, 



and one for June 25, 1900. 

 F"our instances of occurrence in May. 

 Nine records, all for May. 

 Of rather common occurrence in March 



and April ; also seen occasionally in 



October and November. 

 Noted five times in May and twice in 



August. 

 Si.x records, all for May. 

 Seen twice in August. 

 Eleven records for May, one for July, four 



for August. 

 Only one record, that of a bird seen on 



July 27, 1903. 

 Of sparing but regular occurrence in May, 



common in July and August. 

 Two records for May, one for August. 

 Several records for November. 

 Noted only in May, at times rather com- 

 monly. 

 Ten records for May, one for October, 



and one for November 3 (a late date). 

 Only si.x records, one for April, four for 



May, one for November. 

 Eleven records, all for May. 

 Six records, all for May. 

 A single male noted in May, 1900. 

 May, early June, September and October ; 



common. 

 A male seen on May 14, 1900. 

 Two records, both for May. 

 A single bird seen on May 10, 1900. 

 Of regular and common occurrence in May ; 



also seen occasionally in August. 

 Noted regularly and commonly in May and 



August; also seen occasionally in July, 



September and early October. 

 Only one record, that of a young male 



taken on September 27, 190 1. I have 



