Streaked Shearwater

The Streaked Shearwater, scientifically known as Calonectris leucomelas, is a seabird of notable grace. Adults of this species boast an average length of 48 cm (19 inches) and a wingspan that stretches to an impressive 122 cm (48 inches).

Identification Tips

When observing the Streaked Shearwater, one can identify it by its sizeable wingspan and the characteristic streaked pattern on its plumage, which is particularly noticeable during flight.

Habitat

The Streaked Shearwater exhibits a preference for nesting in burrows located within forested hills, a habitat that provides both shelter and proximity to the ocean's bounty.

Distribution

This pelagic wanderer is found in the vastness of the Pacific Ocean, with breeding grounds primarily on the offshore islands of Japan and the Korean Peninsula. After the breeding season, these birds embark on a southerly migration, frequenting the seas off northern New Guinea, the Arafura Sea, and the South China Sea.

Behaviour

The Streaked Shearwater is known to follow fishing boats, particularly off the coast of Japan, where it is drawn to the anchovy crawls. This behavior, however, sometimes leads to unintended consequences, such as entanglement in fishing nets or accidental ingestion of bait on long-line fishing lines.

Breeding

Breeding Streaked Shearwaters take to burrows for nesting, a behavior that aligns with their need for protection and seclusion during this vulnerable period.

Diet and Feeding

The diet of the Streaked Shearwater is primarily composed of fish and squid, which it skillfully captures from the ocean.

Conservation status

Currently, the Streaked Shearwater is classified as Near Threatened on the IUCN Red List. This status reflects the various threats it faces, including entanglement in fishing nets, predation by cats and rats on breeding islands, and harvesting by certain traditional human cultures.