Hi,
At one of the another thread you wrote that this particluar guide book has keas on the cover what is wrong. The 7th edition from 1962 followed by 1968 8th edition both has the same cover - and apparently this is a pair of kakas not keas !!!!!
I've just come across Keulemans series of New Zealand bird lithographs from the late 1880s, and the picture on the guidebook above is a (pretty poorly-done, and terribly coloured!) copy of his picture of a pair of kaka. The lower one is a red mutation known in Maori as kaka kura ("red kaka").
