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Manx Shearwater - BirdForum Opus

Revision as of 20:44, 5 October 2014 by Njlarsen (talk | contribs) (taxon, ref, remove {{incomplete}})
Photo by Glen Tepke
Photo taken in Gulf of Maine southeast of Bar Harbor, Maine, USA, 7/26/04.
Puffinus puffinus

Identification

34 cm. Blackish or dark brown upper parts, white below, white wing linings, white crescent behind eye, short tail.

Similar Species

Audubon's Shearwater is slightly smaller with shorter less-pointed wings, dark undertail coverts, and white spot near eyes.
Cory's Shearwater is much larger with much lighter brown body and wings, heavy yellow bill and white tail band.
Great Shearwater is much larger with lighter body, smudgy brown belly, neat cap, narrow pointed wings. and white tail band.

Distribution

Manx Shearwater is known to nest commonly in the eastern North Atlantic, but in 2009, the first confirmed young fledged within the USA, in Maine.

Outside breeding season disperses to southern Atlantic. Since the 1970ties have been seen as a rare but increasingly regular bird in eastern north Pacific.

Taxonomy

This is a monotypic species1.

Up to seven other species has in the past been treated as subspecies of Manx Shearwater.

Habitat

Strictly pelagic when not breeding, usually off-shore rather than oceanic

Behaviour

Flight

Glides and banks low over the water on stiff straight wings, with very irregular wingbeats

Breeding

Nests colonially in burrows on grassy slopes of islands, often at some distance from the sea. Visits burrows after dark

Vocalisation

<flashmp3>Puffinus puffinus (song).mp3</flashmp3>
Listen in an external program

References

  1. Clements, J. F., T. S. Schulenberg, M. J. Iliff, D. Roberson, T. A. Fredericks, B. L. Sullivan, and C. L. Wood. 2014. The eBird/Clements checklist of birds of the world: Version 6.9., with updates to August 2014. Downloaded from http://www.birds.cornell.edu/clementschecklist/download/
  2. Collins Field Guide 5th Edition

External Links


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