Lanyon, Wesley E.2005-10-062005-10-061963http://hdl.handle.net/2246/33737 p. : ill. ; 24 cm.Includes bibliographical references (p. 6-7).1134615 bytesapplication/pdfen-USQL1 .A436 no.2129, 1963Myiarchus cinerascens pertinaxFlycatchers -- Mexico -- Baja California (Peninsula)Birdsongs -- Mexico -- Baja California (Peninsula)Birds -- Mexico -- Baja California (Peninsula)Notes on a race of the ash-throated flycatcher, Myiarchus cinerascens pertinax, of Baja California. American Museum novitates ; no. 2129Flycatchertext