Description
This species resembles the White-necked Petrel, but is slightly smaller at 40 centimetres (16 in) in length and 300–350 grams (11–12 oz) in weight. It has a black cap, white rear neck, dark grey back, wings and tail, and a darker rump. The underparts are white with dark bases to the primary feathers. Like White-necked, the upperparts of worn birds become darker.
It is very difficult to separate Vanuatu Petrel from White-necked Petrel at sea.
Read more about this topic: Vanuatu Petrel
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