White-chinned Petrel vs Sooty Shearwater

The White-chinned Petrel is best identified by its distinctive white chin and large, pale bill, while the Sooty Shearwater lacks these features, presenting a uniformly dark plumage. Both species are seabirds, but their bill color and chin markings are key differentiators.

Look for the white chin and pale bill on the White-chinned Petrel. The Sooty Shearwater will appear uniformly dark without any white on the chin.

The White-chinned Petrel has a typically white chin and a large, pale bill, which contrasts with the Sooty Shearwater's uniformly dark plumage and lack of a white chin.