The Sooty Shearwater may be the most abundant seabird in the world, with a global population estimated at over 20 million birds. It makes one of the longest migrations ever tracked — a figure-eight circuit of the Pacific Ocean covering over 40,000 miles. In late summer, millions appear off both coasts of North America in enormous offshore flocks.
Habitat
Open ocean of the Pacific and Atlantic; breeds in the Southern Hemisphere
Diet
Fish, squid, and krill caught by diving
How common
Uncommon
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