Streaked Shearwater

Calonectris leucomelas

Order

PROCELLARIIFORMES

Family

Petrels and Shearwaters (Procellariidae)

Code 4

STRS

Code 6

CALLEU

ITIS

ILLUSTRATION

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PHOTOS

CONSERVATION STATUS

Near Threatened

The Streaked Shearwater is a large seabird reaching 48 centimeters in length at adulthood. It nests in coastal areas and islands from southern Russia and Japan to the Korean peninsula and northern China, and disperses south to Australia. Vagrants have also occurred off the western coast of the United States. Nests are simple burrows in forest-covered hillsides. This species has an estimated population of 3,000,000, and is believed to be in decline because of introduced predators. The conservation rating for the Streaked Shearwater is Near Threatened.

IBIRD EXPLORER GENERAL

PHOTO SHARING AND DISCUSSION

BIRD PHOTOGRAPHY

SUMMARY

Overview

Streaked Shearwater: This large shearwater has scaled, dark gray-brown upperparts, white underparts, pale bill and white forehead. White head has variable light to heavy pale brown streaks. Upper tail coverts can be white, forming a pale horseshoe. Legs and feet are pink. Feeds on small fish and squid. Flies with loose angled wings. Light, graceful flapping and gliding. Sexes are similar.

 

Range and Habitat

Streaked Shearwater: This species breeds in large numbers in Japan and the islands off of Japan's southern coast. After breeding, they migrate toward Australia. In the autumn, they may be seen in Hawaii and, occasionally, off the coast of northern and central California. These birds are pelagic, coming ashore only to breed.

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Streaked Shearwater SONGS AND CALLS

Streaked Shearwater Silent

Generally silent except on breeding grounds.

Similar Sounding


Voice Text

Generally silent

INTERESTING FACTS

  • The Streaked Shearwater uses burrows to nest in. It prefers to dig them on forested hills.
  • They are abundant and widespread, however some mortality occurs from entanglement in fishing nets, and from predation by cats and rats. In addition, it is harvested by some traditional endemic human cultures.
  • A group of shearwaters are collectively known as an "improbability" of shearwaters.

SIMILAR BIRDS

RANGE MAP NORTH AMERICA

About this North America Map

This map shows how this species is distributed across North America.

RANGE MAP HAWAII

About this Hawaii Map

This map shows how this species is distributed across the Hawaiian island.

RANGE MAP PALAU

About this Palau Map

This map shows how this species is distributed across the Palau islands.

FAMILY DESCRIPTION

TERMINOLOGY

CREDITS

Author

Gary Owen Dick

Artist

Irina Rud-Volga

HELP ME IDENTIFY A BIRD

BACKYARD BIRDING

BIRDS AND BIRDING

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UnderpartsX

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

UpperpartsX
Back, rump, hindneck, wings, and crown.
Tail covertsX
The short tail feathers covering the base of the long tail feathers.
PelagicX
The pelagic is a type of bird whose habitat is on the open ocean rather than in a coastal region or on inland bodies of water (lakes, rivers). An example of a pelagic bird is the blacklegged kittiwake.
Parts of a Standing bird X
Head Feathers and Markings X
Parts of a Flying bird X