pigeon's breeding season. Chatham pigeon is renowned for their spectacular flying dives, especially by the males, to attract a mate. Most breed at 1 to 2 years of age, laying just one egg. Chicks fledge at about 45 days old and become independent at 3 months. They have a life expectancy of up to 25 years. References Further reading Hutching, G. (2004). Back from the Brink. The Fight to Save our Endangered Birds. Penguin Books: Auckland. External links Birds of the Chatham Islands Treroninae Birds described in 1891 Critically endangered animals Endemic birds of New Zealand