16 



BULLETIN 396, U. S. DEPARTMENT OF AGEICULTUEE. 



total number of nesting pairs. Indeed, the gain in this latter respect, 

 69 per cent in the five years, is more than may be explained by 

 the groNvth of bird food and shelter on the place and is probably due 

 to the entire freedom from disturbance which the birds have come 

 to recognize. 



Tarle III. — Kinds of birds, and number of pairs of each, nesting each year 

 from 1908 to 1915 on a tract of 92 acres near Woodstock, Vt. 



Species. 



1908 



1909 



1913 



1914 



1915 



Bluebird 



Robin 



Wood thrush 



Wilson thrush 



Hermit thrush 



White-breasted nuthatch 



Black-capped chickadee 



Catbird 



Brown thrasher 



Black and white warbler 



Yellow warbler 



Black-throated blue warbler. . 



Chestnut-sided warbler 



Black-throated green warbler . . 



Oven-bird 



Maryland yeUow-throat 



Redstart 



Red-eyed vireo 



Yellow-throated vireo 



Solitary vireo 



Barn swallow 



Scarlet tanager 



Purple finch 



American goldfinch 



Vesper sparrow 



Savannah sparrow 



Chipping sparrow 



Field sparrow 



Song sparrow 



Rose-breasted grosbeak 



Indigo bunting 



Baltimore oriole 



Prairie horned lark 



Kingbird 



Crested flycatcher 



Phoebe 



Wood pewee 



Least flycatcher 



Ruby-throated hummingbird. 



Chimney swift 



Nighthawk 



Hairy woodpecker 



Downy woodpecker 



YeUow-bellied sapsucker 



Flicker 



Black-bUled cuckoo 



Screech owl 



Rufied grouse 



Upland plover 



Total number of different species. 

 Total pairs of nesting birds 



It is interesting to note the change in the character of the bird 

 population from year to year. While 42 kinds of birds nested on 

 the place in the course of the five years, the greatest number in any 

 one year was only 34, while each year a dozen or more kinds of birds 

 nested wathin sight of the 50 acres, but not within the enumeration 

 area itself. (See Table IV.) 



