FALCONID^E — THE FALCONS. 



157 



the posterior portions is very deep, and the anterior light places are much 

 tinged with ochraceous, the supraloral stripe being tinged throughout with 

 the same ; across the breast is a series of small tear-shaped spots of black, 

 forming an imperfect band ; there are, however, no other differences. 



Nos. 29,520 (9, Chile, Berlin Museum) and 29,521 (^, Venezuela) differ 

 from the rest only in a deeper tinge of ochraceous anteriorly beneath, the 

 occipital stripes being very 

 red. 



No. 18,497 ((?, from the 

 Eio Pecos, Texas) is in the 

 plumage described as that of 

 the young male, having the 

 rusty tinge on rump, and 

 more numerous bands on 

 tail ; the breast is almost as 

 deeply ochraceous as the 

 tibia?, and tlie broad black 

 patches of the sides scarcely 

 meet across the abdomen, 

 beinu; there broken into 

 streaks. 



A female, nearly adult, from Buenos Ayres (45,692, Conchitas ; AV. H. 

 Hudson), has the feathers of the upper parts faintly edged with white ; the 

 rump and upper tail-coverts conspicuously barred with the same. The head 

 above is decidedly more bluish than in northern examples, each feather with 

 a shaft-line of black. The tail has only seven white bars, — these, however, 

 very sharply defined, and very pure white ; the longest primary has eleven 

 white bars. The lower plumage is similar to that of the immature male 

 from the Eio Pecos, Texas (No. 18,497). This specimen has the second and 

 third quills equal. 



Falco Jem oralis. 



LIST OF SPECI.MENS EXAMINED. 



National Museum, 14; Boston Society, 5; Philadelphia Academy, 2; New York 

 Mu.seum, 1 ; G. N. Lawrence, 1 ; R. Ridgway, 2. Total, 25. 



Measurements. 



Habits. Only two specimens of this Hawk have been taken within the 

 limits of the United States. One was obtained by Dr. Heermann on the 

 vast plains of New Mexico, near the United States boundary -line. It ap- 

 peared to be flying over tlie prairies in search of small birds and mice, at 



