. Bulletin of the British Ornithologists' Club. . Figure 3. Dorsal view of the wing pattern in juvenile ibises of the genus Threskiorms; A = T. aethiopica aethiopica, B — T. aethiopica abbotti, C = T. melanocephala, D = T. molucca. resembles T. molucca in possessing elongated feathers at the base of the neck. This would suggest that this form evolved from one resembling T. molucca, possibly by island hopping northwards from the Papuan region followed by extinction on the intervening islands. The almost complete absence of melanin in the plumage may be taken as supporting this idea, 70. Please
. Bulletin of the British Ornithologists' Club. . Figure 3. Dorsal view of the wing pattern in juvenile ibises of the genus Threskiorms; A = T. aethiopica aethiopica, B — T. aethiopica abbotti, C = T. melanocephala, D = T. molucca. resembles T. molucca in possessing elongated feathers at the base of the neck. This would suggest that this form evolved from one resembling T. molucca, possibly by island hopping northwards from the Papuan region followed by extinction on the intervening islands. The almost complete absence of melanin in the plumage may be taken as supporting this idea, 70. 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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