84 PACIFIC COAST AVIFAUNA No. 10 



17. Elanus leucurus (Vieillot). 



White-tailed Kite. 

 Status — The only definite record for Arizona is that of F. T. Pember, wlio 

 claimed to have met with the species near Gila Bend, in April (1892, p. 49). 



18. Buteo lineatus elegans Cassin. 



Red-bellied Hawk. 



Synonym — B iiteo elegans. 



Status — The only record of the occurrence of this species in Arizona is tht.t 

 of a specimen collected by Kennerly and Mollhausen on the Colorado Chiquito, 

 November 17. 1853 (Baird, 1858, p. 28). According to information received by 

 me from Air. W. W. Cooke it is not now to be found in the National Museum 

 collection, although entered in the catalogue, with data as given above. Under 

 the circumstances the species may be excluded from the regular list until tne oc- 

 currence can be confirmed. 



19. Xenopicus albolarvatus (Cassin). 



White-headed Woodpecker. 

 Status— The alleged occurrence of this species in the Santa Catalina Moun- 

 tains ( A'isher. 1910b. p. 282) seems doubtful. 



20. Otocoris alpestris praticola Henshaw. 



Prairie Horned Lark. 

 vStatus — One specimen recorded from Fort Verde, in winter (Oberholser, 

 1902, p. 825). The possibility presents itself of this bird being an individual ex- 

 treme of some one of the several races regularly frequenting the region, or an inter- 

 grade betv/een two of them, rather than belonging to the race to which it has 

 been referred. In treating slightly dififerentiated subspecies of such a variable 

 species it seems unsafe to assert such an extraordinary extension of range on such 

 slender evidence. 



21. Agelaius phoeniceus californicus Nelson. 



BicoLORED Red-winged Blackbird. 



Synonym — Agelaius gubernator calif ornic its. 



Status— Straggling east to western Arizona ( A. O. U. Check-List, 1910, p. 

 235). According to information received by me from Mr. W. W. Cooke, this 

 statement is based upon a specimen found dead July 6, 1907, by Mr. Vernon 

 liailey. at Casa Grande. Intcrgradation between this form and ncutralis has 

 been demonstrated, and the possibility suggests itself of the supposed specimen 

 of californicus being really an individual extreme of ncutralis, 2l common species 

 in the region. The occurrence of californicus, apparently a non-migratory form, 

 so far from the normal boundaries of its range, should receive the strongest pos- 

 sible verification. 



22. Wilsonia pusilla pusilla (Wilson). 



Wilson Warbler. 

 Status — According to Ridgway (1902, p. 710) this species is "occasional 

 during migration in . . . Arizona (Tucson. May: Fort Whipple. May)". 



