Antrostomus vociferus arizonæ
Chiricahua Mountains, Arizona.
Formerly considered conspecific with A. noctitherus, and until recently also with A. vociferus, from which it differs in its similarly patterned but notably modified song, with more “rolling r” notes (“cuerrrporrruín” or a rolling, trilled “g-prrip prréé” vs “whip-poor-will” or a loud, clear, emphatic whistle, “WHIP puwiw WEEW”), somewhat differently pitched and stressed (3); flushing call a rather deep, muffled, rising “gwirp” vs a single liquid “pwip” (2); somewhat larger (8%) size#R (score presumed at 1); smaller white tips on outer tail (1); paler overall plumage (1); more tawny-ochraceous lores and ear-coverts#R (1); only light brown barring on undertail-coverts#R (ns); egg pigmentation is said to be different but this requires confirmation, as do colour of gular stripe#R and length of rictal bristles#R. Further support for this split was found in recent phylogenetic study#R. Five subspecies currently recognized.
Food and feeding
Status and conservation
Only subscribers are able to see the bibliography. Login or Subscribe to get access to a lot of extra features!