356 



BIRDS OF PENNSYLVANIA. 



SWAINSON' HAWK (Buteo swainsoni). 



Summary. Of 4 stomachs examined each one contained small mammals and insects. 



BROAD-WINGED HAWK (Buteo latissimus}. 



Summary. Of 22 stomachs examined, 2 contained small birds; 3. mice; 5. other mammals ; 

 or batrachians; 10, insects, and 1, earth worms. 



reptiles 



ROUGH-LEGGED HAWK (Archibuteo lagopus sancti-johannis} . 



