REPORT 01s: BIRD CENSUSES, 1916-1920. 

 KANSAS. 



11 



Two series of records from Kansas are so suggestive as to warrant 

 quoting at some length. One is from Onaga, near tlie northeastern 

 corner of the State, well witliin the humid belt, and the other is from 

 the south central part, at Harper, on the Plains. 



At Onaga counts were made for five years on a 40-acre tract, half 

 of which was planted to corn; the 4-acre lot containing the buildings 

 is bordered by hedge, and 6 acres of grove extend along two sides; 

 and there are 5 acres each of orchard and pasture. For the five 

 years this tract held an average bird population of 50 pairs of 24 

 species, or an average of 125 pairs of birds per 100 acres. In 1916 

 only the 10 acres surrounding the house and including part of the 

 grove and orchard were surveyed; but this small section held 37 



Eairs of birds representing 22 species, leaving only some 15 pairs of 

 irds to nest on the remaining 30 acres of this entire tract, only a 

 few more than on the adjoining open prairie. This 40-acre tract of 

 native prairie is somewhat hilly, with a small stream fringed with 

 trees and brush, boxelder, willow, white elm, and dogwood. The 

 average bird population here for four years was 13 pairs of 10 species, 

 a rate of 33 pairs of birds per 100 acres. (See Tables 2 and 3.) 



Table 2. — Birds nesting on 40 acres about house at Onaga, Kans. 

 (Figures for 1916 refer to 10 acres only). 



Species. 



1914 



1915 



1917 



1918 



1920 



1916 



tGreea heron 











1 

 1 

 3 





*Bobwhite 



1 

 3 



1 

 8 

 1 

 2 



1 

 3 



2 

 5 



1 





3 



tScreech owl . . ... .... 





*YeUow-billed cuckoo 



3 



1 

 1 

 2 

 2 

 1 



1 



1 



2 







tDowny woodpecker .■ 













*Red-headed woodpecker 



2 

 2 

 1 

 3 

 1 

 1 

 1 

 1 



2 

 1 



1 

 1 

 1 

 1 

 1 

 1 

 1 



2 

 1 



1 



*Flicker 



1 



Nighthawk 





♦Kingbird 



1 

 1 

 1 

 2 



1 

 1 

 1 



1 



1 

 1 



2 



i 

 1 



2 

 1 

 3 



1 



♦Crested flycatcher 



1 



Phoebe 



1 





2 



Cowbird 





fPted-winged blackbird 











♦Orchard oriole 



3 

 2 



8 



3 

 1 



1 

 2 



2 



1 



1 



♦Baltimore oriole 



1 



Bronzed grackle 



1 



tGoldfinch 





1 







tPine siskin 









1 







1 











Lark sparrow 



1 







i 





Field sparrow 







1 

 3 











2 

 1 



5' 



3" 



1 

 1 



1 













3 

 6 

 1 

 1 

 1 

 1 



I 

 1 

 3 



1 



1 

 7 

 1 

 2 

 2 



1 



8 



6" 





♦Barn swallow 



8 



M^arbUng vireo 



1 





1 



Yellow warbler 



1 







tChat 







1 



♦Catbird 



4 

 2 

 2 

 1 

 1 



5 

 3 



2 



4 

 2 

 1 



4 

 4 



i' 



2 

 2 



5 

 5 

 3 



3 



♦Brown thrasher 



2 



House wren 



2 



Long-tailed chickadee 





♦Robin 



1 



1 



1 

 2 



1 



English sparrow 















Total niimbftr of sppcifis 



26 

 56 



22 

 49 



24 

 40 



24 

 48 



26 

 57 



22 



Total number of nesting pairs 



37 







♦Present every year. 



fPresent only one year. 



