Notes on some birds of tropical Africa, with descriptions of three new forms. American Museum novitates ; no. 56

Chapin, James Paul, 1889-1964.American Museum Congo Expedition (1909-1915)2005-10-062005-10-061923http://hdl.handle.net/2246/46108 p. : ill., maps ; 24 cm.Includes bibliographical references.The subspecies of the narina trogon -- Swallows of the genus Psalidoprocne in the northeastern Congo -- The largest subspecies of Pyrenestes ostrinus.792894 bytesapplication/pdfen-USQL1 .A436 no.56, 1923Apaloderma narina brachyurumPsalidoprocne mangbettorumPyrenestes ostrinus maximusBirds -- Congo (Democratic Republic)Birds -- Africa, Sub-SaharanNotes on some birds of tropical Africa, with descriptions of three new forms. American Museum novitates ; no. 56text