28 PACIFIC COAST AVIFAUNA No. 10 



107. Falco columbarius richardsoni Ridgway. 



RICHARDSON MERLIN. 



Synonyms Falco richardsoni; Falco aesalon. 



Status Cooper secured an adult female at Fort Mohave, January 21, 1861 

 ( Mus. Vert. Zool., no. 4388), and Fisher (18933, p. 114) lists one collected 

 at Fort Verde, December 9, 1887, the only definite records I know of for Arizona. 

 Coues' (i866a, p. 42) comments on Falco aesalon undoubtedly refer to this 

 species, but give no clue as to its status in the region he explored. 



108. Falco fusco-caerulescens Vieillot. 



APLOMADO FALCON. 



Synonyms Falco fcmoralis; Hypotriorchis fcmoralis. 



Status Formerly, at least, a fairly common summer visitant in extreme 

 southeastern Arizona. Henshaw ( i875b, p. 413) observed it in this region in 

 1874, and Bendire (1887, p. 552) describes its nesting near Fort Huachuca. Has 

 been met with but seldom of late years. One seen on the San Pedro River, near 

 Fairbanks, February 13, 1910 (Willard, I9ioc, p. no). 



109. Falco sparverius sparverius Linnaeus. 



AMERICAN SPARROW HAWK. 



Synonyms Tinnuncvlus sparverius; Falco sparverius deserticolus ; Falco 

 sparverius pholoena. 



Status An abundant resident of general distribution, breeding both in the 

 valleys and in the mountains. There are, among ethers, breeding records from 

 Fort Whipple, Santa Catalina Mountains, Huachuca Mountains, Mogollon Moun- 

 tains, and Santa Cruz River near Tucson, these points being variously in the Lower 

 Sonoran, Upper Sonoran, and Transition zones. It is locally migratory, but prob- 

 ably to be found in most of the lower valleys during the winter. Explicit winter 

 records are from Fort Whipple, Tucson, Sulphur Spring Valley, and the San 

 Pedro River. 



no. Polyborus cheriway (Jacquin). 



AUDUBON CARACARA. 



Synonyms Polyborus tharus ; Polyborus audubonii; Polyborus tharus var. 

 auduboni. 



Status Apparently not common. Reported from the vicinity of Tucson in 

 summer, and from Yuma, doubtfully identified by Price (1899, p. 91), and the Salt 

 River (Fisher, 18933, p. 128) in winter. Found breeding sixteen miles south- 

 west of Tucson by Herbert Brown (Bendire, 1892, p. 317). 



in. Pandion haliaetus carolinensis ( Gmelin ) . 



AMERICAN OSPREY. 



Synonym Pandion carolinensis. 



Status There seem to be no breeding records for the state though specimens 

 have been taken in the summer months (see Fisher, 18933, p. 130). Reported 

 from scattered localities throughout Arizona during the migrations, usually 

 along the larger streams. 



