Buller Kokako, published 1888

North island kōkako callaeas wilsoni (front) has blue wattles, and south island kōkako callaeas cinereus (rear) has orange wattles. Date: published 1888.

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Author: By J. G. Keulemans, in W.L. Buller's A History of the Birds of New Zealand. 2nd edition. Published 1888.Source: https://commons.wikimedia.org/

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a history of the birds of new zealand by buller callaeas cinereus (illustrations)corvoidea illustrations callaeas wilsoni (illustrations)south island kōkako