Until recently the shearwaters were devided in two genera Calonectris and Puffinus, but based on dna-analysis Penhallurick and Wink (2004) have proposed a splitting of the shearwaters into three genera: Calonectris for the large shearwaters of the Northern Atlantic, the Mediterranean and the waters around Japan, Ardenna for a group of large Southern Hemisphere breeders and Puffinus for the smaller shearwaters such as the Manx’ group, Audubon’s and Little Shearwaters. This new taxonomy is now widely accepted, but not by all and is stil subject of discussion.
, with a black-tipped pink bill, slower wingbeats; Black-vented is smaller, blacker above, whiter on underwing, with a black bill. It has faster wingbeats.
Listen to the sound of Pink-footed Shearwater
Copyright remark: Most sounds derived from xeno-canto
recorded by Alvaro Jaramillo
|wingspan min.:||108||cm||wingspan max.:||110||cm|
|size min.:||47||cm||size max.:||49||cm|
|incubation min.:||85||days||incubation max.:||95||days|
|fledging min.:||85||days||fledging max.:||95||days|
r in burrows. Mated pairs may call softly in duet, preen each other’s head and neck.
Nest: Site is in burrow underground, often more than 4′ long. Nest chamber may have sparse lining. Most eggs probably laid early December.
Clutch 1 per season. White. Both sexes probably incubate; incubation period not known.
Young: Probably fed by both parents during nocturnal visits; age at first flight not known. Young depart nesting islands in April and May.
Behavior: Forages mostly by plunging into water from flight or diving from surface, and swimming short distance underwater with wings spread; also seizes items while swimming on surface. May follow boats for scraps or offal.
Video Pink-footed Shearwater
copyright: Josep del Hoyo
Migrates north after breeding, commonly seen off North America’s west coast from May to November, with peak numbers in September. A few seen at other seasons at our latitudes are non-breeders or immatures.