Sooty Tern vs Buller's Shearwater

The Sooty Tern and Buller's Shearwater can be distinguished by their flight patterns and plumage. Sooty Terns are more agile and are rarely seen resting on water, while Buller's Shearwaters exhibit a more gliding flight style and are often seen on the water. Plumage differences are also notable, with the Sooty Tern having a stark black and white contrast, and Buller's Shearwater showing a more muted, grayish tone.

Flight style: Sooty Terns are agile and fast, rarely resting on water; Buller's Shearwaters glide more and rest on water. Plumage: Look for the stark black and white contrast of the Sooty Tern versus the grayish tones of Buller's Shearwater. Size: Buller's Shearwater is larger and more robust. Habitat: Consider the location; Sooty Terns are more tropical, while Buller's Shearwaters are found across the Pacific.

Buller's Shearwater is generally larger with a more robust body compared to the slimmer Sooty Tern.

Sooty Tern has a distinctive black upper body and white underparts, with a sharp contrast. Buller's Shearwater has a grayish back with a white belly and a more subtle color transition.

Sooty Terns are almost always airborne, rarely seen resting on water, and feed by dipping. Buller's Shearwaters are often seen gliding and resting on water, feeding on fish and squid, sometimes following trawlers.

Sooty Terns inhabit tropical and subtropical oceans, often nesting on remote islands. Buller's Shearwaters breed on islets off New Zealand and disperse across the Pacific Ocean.