Julian Hume / Scaled head studies of extinct Hawaiian Geese compared with Nene (Branta sandvicensis) (centre). Clockwise from top left: Giant hawaiian goose (Branta sp), Maui nui moa-nalo (Thambetochen chauliodous)...

Alex Mustard / Discarded bicycle in the River Nene, Peterborough, Cambridgeshire, England. UK August. The bridge was build by William Cubitt in 1850 and is the only cast iron bridge still in use on a major high sp...

Mike Potts / Hawaiian goose / Nene (Branta sandvicensis) feeding in agricultural fields, Kauai island, Hawaii, USA

Mike Potts / Hawaiian goose / Nene (Branta sandvicensis) eating grit in a car park, Kauai island, Hawaii, USA

Gerrit Vyn / Nene / Hawaiian goose (Branta sandvicensis) Hawaii. April. Vulnerable species.

Gerrit Vyn / Nene / Hawaiian goose (Branta sandvicensis) Hawaii. April. Vulnerable species.

Gerrit Vyn / Two adult Nene / Hawaiian geese (Branta sandvicensis) Hawaii. April. Vulnerable species.

Gerrit Vyn / Nene / Hawaiian goose (Branta sandvicensis) Hawaii. April. Vulnerable species.

Gerrit Vyn / Family group of Nene or Hawaiian geese (Branta sandvicensis) Hawaii. April.

Jack Jeffrey / Nene (Branta sandvicensis) group on hillside, Hawaii

Jack Jeffrey / Nene (Branta sandvicensis) on hillside, Hawaii

Jack Jeffrey / Nene (Branta sandvicensis), Hawaii