Chatham Islands Petrel

The Chatham Islands 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. Chatham Islands petrels are rarely observed away from the colony; the few at-sea records are from ships in oceanic waters.