HYPOTHETICAL LIST. 



353 



L-t 



Recorded as occi-Ting on the Rio Verde, Arizona, but its identity 

 not satisfactorily determined. (C/. Coues, Bull. Nutt. Orn. Club, Vl. 

 1881, p. 248.) 



13. Cathartes burrovianus Cass. 



Burroughs's Turkey Vulture. 



Cathartes burrovianus Cass. Pr. Ac. Nat. Sci. Phila. II. 1845, 212. 



[B 4, C -, R — , C — .] 



Hab. Mexico and Eastern South America. Reported as having 

 been seen near Brownsville, Texas. {Cf. Dresser, Ibis, 1865, p. 322.) 



Family FALCONID-ffi. 



14. Buteo cooperi Cass. 



Cooper's Henhawk. 



Buteo cooperi Qh%s. Pr. Ac Nat. Sci. Phila. VIII. 1856, 253. 



[329,0349, R 437, C 514.] 



Probably the light phase of B. harlani Aud. {Cf. Ridgw. Auk, 

 I. 1884, pp. 253, 254; lb. II. 1885, pp. 165, 166.) 



15. Buteo fuliginosus Scl. 



Little Black Hawk. 



Buteo fuliginosus Scl. P. Z. S. 1858, 356. 



[B -, C -, R -, C -.] 



Hab. Tropical America; Florida (accidental?). Slid to be the 

 melanistic phase of B. brachyurus Vieill. {Cf Ridgw. Bull. Nutt. 

 Orn. Club, VI. Oct. 1881, pp. 207-214.) 



Genus RH7NCHOFSITTA Bonaparte. 



Rhynchopsitta Bonap. Rev. et Mag. Zool. VI. 1854, 149. Type, Ma- 

 crocerctts pachyrhynchus Swains. 



23 



