1914 BIRDS OF ARIZONA 6.5 



throughout the state, except along the southeastern boundary, where it is re- 

 placed by P. I. me! aii-o gastra. The cliff swallow has been found breeding abun- 

 dantly at various scattered points Fort Whipple, Little Colorado River, Bill 

 Williams River, Fort Verde, and at several places on the Colorado River between 

 Xeedles and Yuma. Breeding birds from Fort Verde have been referred to P. I. 

 tac/iina (Miller, 1906, p. 177). 



277. Petrochelidon lunifrons melanogastra (Swainson). 



MEXICAN CLIFF SWALLOW. 



Synonym Petrochelidon melanogastcr. 



Status Occurs as a summer visitant along the Mexican boundary of ex- 

 treme southeastern Arizona, as far west as Nogales (Mearns, 1901, p. 177). The 

 northern limits of its range have not yet been ascertained. 



278. Hirundo erythrogastra iloddaert. 



BARN SWALLOW. 



Synonyms Hirundo rufa; Hirundo horre onnn ; Chelidon crythrogastcr. 



Status- Of rare and local occurrence. The only breeding records known to 

 me are as follows: Tucson and the Santa Catalina Mountains, up to 5,000 feet 

 (Scott, 1888, p. 31) ; Elgin, Santa Cruz County (Breninger, iSgSa, p. 117) ; San 

 Pedro River (Swarth, 1904^, p. 48). There are singularly few records of its oc- 

 currence as a migrant. 



279. Iridoprocne bicolor (Vieillot). 



TREE SWALLOW. 



Synonyms Hirundo bicolor ; Tachycincta bicolor. 



Status I know of no instance of this species having been found breeding at 

 any point in Arizona, and it has been observed but seldom as a migrant. Report- 

 ed from Cienega Station in April ( Brewster, 1882, p. 146), from Tucson in 

 March (Scott, 1888, p. 31), and from the Dragoon Mountains in May (Osgood, 

 1903, p. 150). 



280. Tachycineta thalassina lepida Mearns. 

 NORTHERN VIOLET-GREEN SWALLOW. 



Synonyms Hirundo thalassina; Hcrsc thalassina; Tachycineta thalassina. 



Status A common summer visitant of high Transition throughout Arizona. 

 Reported from numerous localities mountains near Fort Whipple, Santa Cata- 

 lina Mountains, Mogollon Mountains. Huachuca Mountains, etc. Of general 

 distribution during the migrations. 



281. Riparia riparia (Linnaeus). 



BANK SWALLOW. 



Synonyms Cotylc riparia ; Cliricola riparia. 



Status Apparently of rare occurrence. Has been seen in summer at Fort 

 Whipple (Cones, i866a, p. 72), and in the vicinity of Tucson (Scott, 1888, p. 31) 

 and the Santa Cruz River (Swarth, 19053, p. 49). 



