How to Identify Diomedeidae

Key Identification Features

• The white eye crescent is indistinct in juveniles, and their underwings are almost completely dark.
• This bird has plumage in black, white and slate-grey, and features the characteristic black thumb mark at the base of the leading edge of the underwing.
• Compared to other mollymawks, it can be distinguished by its smaller size (with particularly narrow wings) and the thin black edging on the underwing.
• This species has distinct plumage and physical features: its yellowish-cream neck and head contrast sharply with its mostly brownish body.

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