I highly recommend this book, written by two American ornithologists watching kea in the field for years: https://www.amazon.com/Kea-Bird-Paradox-Evolution-Beh

I highly recommend this book, written by two American ornithologists watching kea in the field for years: https://www.amazon.com/Kea-Bird-Paradox-Evolution-Behavior/dp/0520213394 https://www.amazon.com/Kea-Bird-Paradox-Evolution-Behavior/d...