Galapagos shearwater (Puffinus subalaris), Punta Pitt, San Cristobal Island, Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America

Galapagos shearwater (Puffinus subalaris) nesting in lava nook in the Galapagos Island Archipelago, UNESCO World Heritage Site, Ecuador, South America

Galapagos shearwater (Puffinus subalaris) nesting in lava nook in the Galapagos Island Archipelago, Ecuador

Adult Great Shearwater (Puffinus gravis) on the wing in the Tristan da Cunha Island Group, Soauth Atlantic Ocean.

Adult Great Shearwater (Puffinus gravis) on the wing in the Tristan da Cunha Island Group, Soauth Atlantic Ocean.

Manx shearwater (Puffinus puffinus) taking off. Hebrides, UK

Sooty Shearwater (Puffinus griseus). Gulf of Maine, USA (rr)

Manx Shearwater (Puffinus puffinus) gliding over calm waters Isle of Mull in Western Scotland