. [Collected reprints, 1911-1931. Ornithology; Mammals. 1926] Swa/rth: Birds and Mammals from the Atlin Region 123 I am using the binomial name for this bird in the conviction that the three white-crowned sparrows, leucophrys, gambelii, and wwttalli are three distinct species. There are various trenehajat external char- acters of plumage and other parts distinguishing them, there are just. Fig. J. Map showing breeding ranges, approximately outlined, of (1) Zonotrichia leucophrys, (2) Zonotrichia gambelii, and (3) Zonotriohia nuttalU. as notable differences of song, and the breeding ranges and
. [Collected reprints, 1911-1931. Ornithology; Mammals. 1926] Swa/rth: Birds and Mammals from the Atlin Region 123 I am using the binomial name for this bird in the conviction that the three white-crowned sparrows, leucophrys, gambelii, and wwttalli are three distinct species. There are various trenehajat external char- acters of plumage and other parts distinguishing them, there are just. Fig. J. Map showing breeding ranges, approximately outlined, of (1) Zonotrichia leucophrys, (2) Zonotrichia gambelii, and (3) Zonotriohia nuttalU. as notable differences of song, and the breeding ranges and migration routes also are indicative of specific differences (see fig. J). As regards external characters, while I am aware that there are various published statements of the existence of intergi-adation between these forms, these. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Swarth, Harry Schelwald, 1878-. s. l. , s. n.
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Keywords: ., bookcentury1900, bookpublisherslsn, booksubje, booksubjectmammals
