Craveri's Murrelet illustration
Birdsong field guide

Craveri's Murrelet

Synthliboramphus craveri

A small, elusive alcid endemic to the Gulf of California, known for its rapid flight and deep-diving foraging behavior. It is morphologically similar to Scripps's Murrelet but distinguished by its darker underwing coverts.

What it sounds like

A high-pitched, rapid twittering or a series of sharp, metallic whistling notes often delivered at night.

Reference call, compare with what you heard
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Rec. Paul Marvin · United StatesCC BY-NC-SAXeno-canto

Field notes

  • Chicks are highly precocial, typically leaving their island nest to follow parents into the open ocean just two days after hatching.
  • It is currently listed as Vulnerable by the IUCN due to its restricted breeding range and threats from invasive species on nesting islands.
  • During the post-breeding season, many individuals disperse northward along the Pacific coast, reaching as far as central California.
  • They are primarily nocturnal at their breeding colonies to minimize the risk of predation from gulls and falcons.
  • The species is named after Federico Craveri, an Italian chemist and meteorologist who collected the type specimen in 1856.
Habitat
Pelagic waters and arid, rocky islands with crevices or dense vegetation for nesting.
Range
Breeds exclusively in the Gulf of California; ranges from western Mexico to the central California coast.

Similar & commonly confused birds

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