Cory's Shearwater | Calonectris diomedea

Roberts Birding Information: Cory's Shearwater

The Cory's Shearwater is a Southern African bird that belongs to the Procellariidae bird family group which includes birds such as Petrels, Shearwaters.

The description for the Cory's Shearwater (Latin name Calonectris diomedea) can be found in the 7th Edition of the Roberts Birds of Southern Africa. The Calonectris diomedea can be quickly identified by its unique Roberts identification number of 34 and the detailed description of this bird is on page 670. You will find a picture of the Cory's Shearwater on page 704.

NOTE: The reference for the information following is "Roberts Birds of Southern Africa", 7th Edition*. This edition contained a number of taxonomic changes as well as changes to English names used traditionally and in earlier editions of most bird books in South Africa. The following paragraph notes such changes if any.

There have been no changes in the common name between the Roberts 6th and Roberts 7th Edition. There have been no changes in the Latin name for the Cory's Shearwater between the Roberts 6th and Roberts 7th Edition.

The Cory's Shearwater has a height of 50 cms and weighs around 910 gms. The head is coloured grey, brown while the bill is coloured yellow. The Calonectris diomedea has a white coloured throat, grey legs and a grey, brown coloured back. The eyes are brown.

Take note of the bird's main distinguishing features such as colour, size and leg length relative to the body size of the bird. Colours of a bird's body parts can be helpful. Be aware what may appear brown to one person is described in Roberts Birds using some other word ... for example brown, black. See colours used in Roberts.

Head is grey, brown.

Eyes are brown.

Bill is yellow.

Legs are grey.

Throat is white.

Back is grey, brown.

Corys Shearwater Feeding Habits ...

This birds forages for fish and other aquatic dwellers through surface sizing and diving for food in the water.

This bird has a specially adapted bill which helps it hunt for fish, crabs, shrimp and other aquatic animals in the water.

This bird is a well known scavenger and rarely kills its own prey.

Corys Shearwater Breeding, Habitat and Nesting Habits ...

The Cory's Shearwater is a very rare bird that can only be seen out at sea following fish vessels. It can be seen in the Atlantic Ocean and Indian Ocean.

Seen in Flocks, Singles or Pairs Normally ...

It is also seen in flocks.