Pterodroma axillaris

Pterodroma axillaris NatureServe Explorer Species Reports — NatureServe Explorer is a source for authoritative conservation information on more than 50,000 plants, animals and ecological communtities of the U.S and Canada. NatureServe Explorer provides in-depth information on rare and endangered species, but includes common plants and animals too. NatureServe Explorer is a product of NatureServe in collaboration with the Natural Heritage Network.

ITIS Reports — ITIS (the Integrated Taxonomic Information System) is a source for authoritative taxonomic information on plants, animals, fungi, and microbes of North America and the world. The Chatham petrel or ranguru is a medium-sized, grey, white and black gadfly petrel. It is endemic to the Chatham Islands, New Zealand, and until recently was restricted to the 218-hectare Rangatira or South-East Island.

FWS Digital Media Library — The U.S. Fish and Wildlife Service’s National Digital Library is a searchable collection of selected images, historical artifacts, audio clips, publications, and video. The Chatham petrel is a medium-sized petrel with a mottled dark-grey and white forehead, dark grey back and upper wings, and white underparts. A black diagonal bar extends from the leading edge of underwing to a black ‘armpit’. The shoulders and upper-wing coverts are a deeper grey giving a dark M pattern across the spread upper wings.

The bill is black and strongly hooked tip. The eye is dark, and the legs and feet are pink, with dark outer toes and webs. The sexes are alike.