. Bulletin of the British Ornithologists' Club. . Bills of Agapornis swinderniana. Above, emini, Gamangui, Belgian Congo. Below, zenkeri, Bitye, 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 Taylor, Nancy M. Oxford : Clarendon Press

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