Cory's Shearwater

Calonectris diomedea

Order

PROCELLARIIFORMES

Family

Petrels and Shearwaters (Procellariidae)

Code 4

COSH

Code 6

CALDIO

ITIS

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ILLUSTRATION

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PHOTOS

CONSERVATION STATUS

Least Concern

The Cory's Shearwater has a large breeding range, estimated globally at between 50,000 and 100,000 square kilometers. It is native to North America, Europe, Africa, and many island nations. It prefers to live in marine ecosystems and often dwells in caves and other subterranean habitats. This bird has a global estimated population of 600,000 individuals that does not show signs of significant decline that would necessitate inclusion on the IUCN Red List. Because of this population status, the current evaluation level of Cory's Shearwater is Least Concern.

IBIRD EXPLORER GENERAL

PHOTO SHARING AND DISCUSSION

BIRD PHOTOGRAPHY

SUMMARY

Overview

Cory's Shearwater: Large gray-brown shearwater, white underparts, pale yellow bill. Feeds at night on crustaceans and large sqiud it takes from the surface. Best identified by its relatively slow, languid flight compared to other shearwaters. Wings held downward. Soars on fixed wings if wind is up.


Range and Habitat

Cory's Shearwater: Breeds on the Azores, and cliffs in the Mediterranean, with the odd outpost on the Atlantic coast of Iberia. Most birds migrate into the Atlantic as far north as the south-western coasts of Great Britain and Ireland. They return to the Mediterranean in February. The biggest colony is located in Savage Islands, Madeira.

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SONGS AND CALLS

Voice Text

Generally silent

INTERESTING FACTS

  • Along with petrels and fulmars, shearwaters are called tubenoses, because a little pipe, fixed to the top of their bill, covers their nasal holes.
  • The Cory's Shearwater was named after the American ornithologist Charles B. Cory. It is the largest shearwater in North American waters.
  • They have a special organ just above the stomach that stores fish oil as an energy reserve.
  • A group of shearwaters are collectively known as an "improbability" of shearwaters.

SIMILAR BIRDS

RANGE MAP

CERange Map for Cory's Shearwater

FAMILY DESCRIPTION

TERMINOLOGY

CREDITS

Author

David Lukas

Artist

Samira Belous

HELP ME IDENTIFY A BIRD

BACKYARD BIRDING

BIRDS AND BIRDING

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UnderpartsX

Belly, undertail coverts, chest, flanks, and foreneck.

Parts of a Standing bird X
Head Feathers and Markings X
Parts of a Flying bird X