The recorded western limits of the Scaled Quail (Callipepla squamata) have been reported by Phillips et al. (1964) in The Birds of Arizona as the Baboquivari Mountains and southcentral Pinal County. A male Scaled Quail was observed and repeatedly heard giving single-note breeding or “squawk” calls in the Tecolote Valley, 18 miles southwest of Sells, Papago Indian Reservation, Pima County, 24 May 1973. When approached and flushed, the “chuk-chur” and “ping” calls were given, confirming the identification. This bird was perched on a cholla (Opuntia sp.) in a vegetation community indicative of a relict edaphic grassland which is now dominated, because of livestock, by Atriplex accompanied by seasonal annuals.