NO. 5 CHECK-LIST OF FOSSIL BIRDS — WETMORE 49 



Caracara prelutosus grinnelli (Howard) 



Polyboriis prelutosus grinnelli Howard, Condor, vol. 42, No. i, Jan. 19, 1940, 

 p. 41. 



Pleistocene : San Josecito Cave, Aramberri, Nuevo Leon. 



Caracara latebrosus (Wetmore) 



Polyborus latebrosus Wetmore, Proc. Biol. Soc. Washington, vol. 33, Dec. 30, 

 1920, p. 77, pi. 2, figs. 5, 6. 



Recent (extinct) : ®® Cave deposits in Cueva Torano, near Utuado, 

 Puerto Rico. 



Subfamily FALCONINAE: Falcons 



Genus FALCO Linnaeus 



Falco Linnaeus, Syst. Nat., ed. 10, vol. i, 1758, p. 88. Type, by subsequent 

 designation, Falco subbuteo Linnaeus (A. O. U. Comm., 1886). 



Subgenus HIEROFALCO Cuvier 



Hierofalco Cuvier, Regne Animal, vol. i, 1817 (Dec. 7, 1816), p. 312. Type, 

 by monotypy, Falco candicans Gmelin. 



Falco mexicanus Schlegel: Prairie Falcon 

 Falco mexicanus Schlegel, Abh. Geb. Zool. Vergl. Anat., Heft 3, 1851, p. 15. 



Modern form reported from Pleistocene : San Josecito Cave, Aram- 

 berri, Nuevo Leon. Late Pleistocene : McKittrick, and Rancho La 

 Brea, Los Angeles, California. 



Falco swarthi Miller 



Falco su'arthi L. H. Miller, Condor, vol. 29, No. 3, May 15, 1927, p. 152, 

 fig. 54- 



Late Pleistocene: McKittrick, California. 

 Falco oregonus Howard 



Falco oregonus H. Howard, Carnegie List. Washington Publ. 551, Jan. 25, 

 1946, p. 178, pi. I, figs. 2, 3. 



Late Pleistocene : Fossil Lake, Oregon. 



Subgenus RHYNCHODON Nitzsch 



Rhynchodon Nitzsch, Obs. Avium Art. Carot. Comm., 1829, p. 20. Type, by 

 subsequent designation, Falco peregrinus Tunstall (A. O. U. Comm., 

 1886). 



•^^ Licluded here since it has not been found in living form, being known only 

 from bones. 



