1922] Johnson — Notes on Distribution and Habits of Bird-Flies 83 



I am using it for the American species. It has been taken from 

 the following species of birds: 



Great Blue Heron (Ardea herodias) T. Say. 



Black-crowned Night Heron (Nydicorax nydicorax) . Alston, 

 Boston, Mass., Aug. 1, '12; Hampton, N. H., May 13, '17 

 (S. A. Shaw); Delaware River, below Philadelphia, Oct. 

 15 '96 (C. Liebeck). 



Little Blue Heron {Florida cceridea). Bristol Isl., Delaware 

 River (Fowler). 



White Heron or Egret (Herodias egretta). St. Augustine, Nov. 

 8,'87. 



American Bittern (Botaurus lentiginosus) . Delaware River 

 below Philadelphia, Sept. 13-Oct. 12,'85 (C. Liebeck). 



Least Bittern {Ixobrychus exilis). Delaware River below 

 Philadelphia, Sept. 18, (C. Liebeck). 



Olfersia americana (Leach) 



This species is known to frequent the following birds: 



Great Horned Owl {Bubo virginianus) . Wenham, Mass., Dec. 

 2,'10 (Dr. J. C. PhiUips), Dover, Mass., Dec. 24,'94 (A. 

 P. Morse), San Jose, Cal. (W. Holden). 



Barn Owl {Aluco pratincola). San Jose, Cal. (W. Holden). 



Long-eared Owl {Asio wilsonianus). Hampton, N. H., Apr. 9, 

 '09 (S. A. Shaw). 



Barred Owl {Strix varia). Framingham, Mass., Nov. 1,'10 

 (C. A. Frost). 



Screech Owl {Otus asio floridanus) . St. Augustine, Fla. (C. W.J.) 



Western Screech Owl {Otus mecallii). Calif. (M. C. Z) . 



Red-shouldered Hawk {Buteo lineatus). Wenham, Mass., Aug. 

 14,'14 (J.C. Phimps),Sherborn, Sept. 21,'98, (A.P.Morse); 

 Dunmore Lake, Vt. (C. E. Brown). 



Red-tailed Hawk {Buteo borealis). lUinois (M. C. Z.). 



Broad-winged Hawk {Buteo platypterus). Texas (G. H. Rags- 

 dale). 



Pigeon Hawk {Falco columbarius) . (B. S. N. H.). 



