Julian Hume / Illustration of extinct birds : Maui nui finch (Telespiza ypsilon) plucking feather down from a moulting Maui Nui Moa-nalo (Thambetochen chauliodous) for use as nesting material. Hawaii.

Julian Hume / Illustration of extinct Makawehi finch (Telespiza persecutrix) (right) with Laysan finch (Telespiza cantans) (left) and Maui nui finch (Telespiza ypsilon) (centre) on Moloka'i, Hawaii.

Julian Hume / Ilustration of extinct birds : Robust crows (Corvus viriosus) with Molokai rails (Porzana menehune) and a pair of Nihoa finches (Telespiza ultima) feed on the carcass of adult and chick Wedge-tailed s...

Julian Hume / Illustration of extinct Robust crows (Corvus viriosus) with Molokai rails (Porzana menehune) and a pair of Nihoa finches (Telespiza ultima) feeding on the carcass of adult and chick Wedge-tailed shear...