REPORT ON BIRD CENSUSES, 1016-1920. 



11 



KANSAS. 



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

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

 corner of the State, well within 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 

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

 birds 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 hovse at Onnga, Kans. 

 (Figures for 1916 refer to 10 acres only). 



Species. 



1914 



1915 



1917 



1918 



1920 



1916 



fGreen heron 











1 

 1 

 3 





♦Bobwhite 



1 

 3 



i 



8 

 1 

 2 



1 

 3 



2 

 ' . 5 



1 





3 



tSereech owl 





♦Yellow-billed cuckoo 



3 



1 

 1 

 2 

 2 

 1 



1 



1 



2 



fHairv woodpecker 





fDownv woodpecker 













♦Red-headed woodpecker 



2 

 2 



1 

 3 

 1 

 1 



1 

 1 



2 



1 



1 

 1 

 1 

 1 

 1 



! 



2 

 1 



1 



♦Flicker 



1 







♦Kingbird 



1 

 1 

 1 

 2 



1 



1 



1 



i 

 1 



2 



1 

 1 

 2 

 1 

 3 



1 



♦Crested flycatcher 



1 



Phoebe 



1 



♦Blue jav 



2 



Cowbird 





tRed-winged blackbird ; 













3 



2 

 8 



3 



1 



1 

 2 



2 



1 



1 





1 



Bronzed grackle 



1 



fGoldfinch 





1 







fPine siskin 









1 





fGrasshopper sparrow 



1 











Lark sparrow 



1 







1 

 2 



1 





Field sparrow 







1 

 3 





Cardinal 





2 

 1 



5' 



3* 



1 

 1 



1 



fBlue grosbeak 







Dickcissel 



3 

 6 



1 

 1 

 1 

 1 



2 

 6 

 1 

 3 



1 



1 

 7 

 1 

 2 

 2 



1 

 8 



t>" 





♦Barn swallow 



8 





1 



♦Bell vireo 



1 



Yellow warbler 



1 



Maryland vollowthroat 





fChat .* 







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 number of species 



Total number of nesting pairs 



26 

 56 



22 

 49 



24 

 40 



24 

 48 



26 

 57 



22 







"Present every vear. 



tPresent only one year. 



