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

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

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

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

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

Fin Whale surfacing amid Cory's Shearwaters in the Azores

Fin Whale surfacing amid Cory's Shearwaters in the Azores

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

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

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

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

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

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

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

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

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

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.

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