. Bulletin of the British Ornithologists' Club. . Figure 2. Anterodorsolateral views of interorbital septa of various finches drawn to similar size. A, Carduelis tristis; B, Carpodacus purpureus; C, Coccothraustes vespertinus; D, Spi^ella pusilla; E, Passer domesticus; F, Cardinalis cardinalis. Each skull above is of similar actual size to the skull directly below. Numbers 1, 3 and 4 illustrate features described in text. GF, cranial fenestra; OF, optic Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - colorat
. Bulletin of the British Ornithologists' Club. . Figure 2. Anterodorsolateral views of interorbital septa of various finches drawn to similar size. A, Carduelis tristis; B, Carpodacus purpureus; C, Coccothraustes vespertinus; D, Spi^ella pusilla; E, Passer domesticus; F, Cardinalis cardinalis. Each skull above is of similar actual size to the skull directly below. Numbers 1, 3 and 4 illustrate features described in text. GF, cranial fenestra; OF, optic 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 British Ornithologists' Club. London : British Ornithologists' Club
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