478 



PREYING BIRDS — RAPTORES. 



Throat (lark brown, vith narrow wliite stripes. I'mlcr jiarts vellowish-whitc, oacli feather 

 with wiile irregular conthient banils of (lark brown, ami at the end a brown sagittate spot 

 (more elongated in young males), less numerous on abdomen and under tail coverts. 



B. elfgans. 



Tibial feathers and under wing coverts pale rufous (dark in males), under tail coverts 

 tinged with the same. 



Length, 18.50 to 19.50 ; extent, 40 00 to 41.00 ; wings, 12.00 to 13.00 ; tail, 8.00 to 9.00. 

 Iris brown ; bill honi-blue ; cere and feet j'ellow. 



Ilab. Western North America. (Not in Oregon ?) 



This is the Pacific Coast representative of the red-shouldered hawk (B. 

 linearis) of tlie Atlantic States, and resembles that species closely in habits 

 as well as in plnmage. The principal difference appears to be in the young. 

 I have found it common in the southern part of the State, especially near 

 San Diego, but did not see any in the Colorado Valley, though Dr. Kennerly 

 obtained one in Xew ^Mexico. On my a]iproacli they would always fly off 

 from their usual perch, circling up high into the air, and uttering short, shrill 

 screams in rapid succession, like the Eastern bird. From finding the same 

 pair constantly at one place during my visit to Judge Witherby's ranch in 

 March, I supposed that they were aliout l;>uilding there ; but I did not suc- 

 ceed in finding their nest. 



