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

Hundreds of sooty shearwaters (Ardenna grisea), come to roost at sunset on Kidney Island, Falklands, South America

Great shearwater (Ardenna gravis), in flight over a calm sea along the eastern coast of Greenland, Polar Regions

Shearwaters, or Gagaros in Portuguese, are sea birds that often encountered in the Azores Seas.

Cory's shearwater, Calonectris diomeda, flying off the Azores (A4 only).

Cory shearwaters taking off from surface (Calonectris diomedea) Azores, Atlantic Ocean (RR)

Cory's Shearwater, Calonectris diomeda, gliding off the Azores Islands (RR)

Fin Whale surfacing amid Cory's Shearwaters in the Azores

Fin Whale surfacing amid Cory's Shearwaters in the Azores

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

Adult yellow-nosed albatross (Thalassarche chlororhynchos) on the wing near a Great Shearwater in the oceanic waters surrounding the Tristan da Cunha Island Group in the South Atlantic Ocean.

Cory's Shearwaters Feeding with Spotted Dolphin, (Calonectris diomeda and Stenella frontalis). Azores (A4 only).

Cory's Shearwater (Calonectris diomeda) at surface. Greece, Eastern Med.

Cory's Shearwater (Calonectris diomeda) flying. Greece, Eastern Med.

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

Bottlenose Dolphin feeding with a group of Cory's Shearwaters. Azores, North Atlantic

Flock of Cory shearwaters on sea surface (Calonectris diomedea) Azores, Atlantic Ocean (RR)

Cory shearwater in flight above sea (Calonectris diomedea) Azores, Atlantic Ocean (RR)

A Manx shearwater emerging from its burrow at night on the mountains of the Isle of Rhum, Scotland, United Kingdom, Europe

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

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

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

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