12 



hawks, weasels and owls, in this Commonwealth" approved June 23, 

 1885, and which made a report to this Society at its meeting held on 

 March 4, 1886, 



Begs leave to make an additional report. That since the said 

 meeting Dr. B. H. Warren has continued his examination of the 

 habits of hawks, and finds a full confirmation of his observations of 

 their habits as set forth in that report, from which it appears that with 

 rare exceptions the hawks are beneficial rather than prejudical to the 

 farmer, the small amount of damage done being greatly overpaid by 

 the destruction they cause of animals and insects injurious to the 

 farmer. 



His observations of the habits of owls, not given in that report, in- 

 dicate that they are particularly beneficial as the following list of the 

 examinations made of the contents of their stomachs and herein 

 given will show, viz. : 



tfLong eared Owl. "Horned Owl 



Asio wilsonianus. Less. 



'Cedar Owl 



SEX. 



DATE. 



LOCALITy. 



Field-mice. 



Male, ad 

 lemale, ad 

 Male^ ad 



Female, ad 

 Male, ad 



November 25, 1886,. 



28, " 

 Decembers, " . 

 1, " . 

 November in, 18T8,. 

 December 30, 1884,. . 

 Februai-y 23, 1879,.. 



December 1.5, 

 November 22, 



Cb ester County, Pa. 



X 

 X 

 X 

 X 

 X 

 X 

 X 

 X 

 X 

 X 

 X 

 X 

 X 

 X 



Short-eared Owl. "Grass-Owl." "Swamp Owl" 



Asio Accipitrinus. Pall. 



SEX. 



DATE. 



LOCALITY. 



Field-mice. 



Insects. 



Female, ad 



Male, ad 

 Female, ad 

 Male, ad 



:! yf 



' ad 



November 21, 1886,. 



25, " . 



27, " . 



1,1885,. 



7,1883,. 



December 15, " . 



January 4, 1880 



March 17,1882, 



Decembers, 1886,.. 



Chester Coimty. Pa. 



Delaware County, Pa. 

 CJecil County, Md. 

 Delaware County, Pa. 

 Pui-ch'd at Phiia. mark't 

 Chester Countj', Pa. 



X 

 X 

 X 

 X 

 X 

 X 

 X 

 X 

 X 



Beetles. 



Screech Owl- "Red Owl.'. 

 Owl." "Mouse Owi; 



"Grey Owl." "Sparrow 



Megascops asio. Linn. 



