NO. 1274. THREE NEW BIRDS— MEARNS. 919 
ocean to ocean. The status of the Arizona martin is unsatisfactory. 
Its measurements agree closely with those of Progne sicbis hes^Jeria 
Brewster, except that the tarsus is slightly longer. In coloration its 
upper parts most resemble kesj)ei'ia, its under parts suhis. 
I am indebted to Mr. Robert Ridgway and the authorities of the 
United States National Museum for the use of its specimens, to Dr. 
J. A. Allen for those in the New York American Museum of Natural 
History, and to Mr. Paul Bartsch for a series of martins from Iowa. 
