At the San Diego Zoo we had the opportunity of observing the behaviour of a Kea Nestor notabilis toward its mirror image under conditions of constant exposure over a period of 12 months. ... The introduction of the mirrors appears to have had a striking impact on the bird's listless state. Reports from keepers indicated that the Kea's appetite was restored after the introduction of the mirrors, and the animal was generally more active. Incidents of feather pulling were generally reduced in frequency.