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The '''gadfly petrels''' are ]s in the ] order ]. These medium to large ]s feed on food items picked from the ocean surface. The '''gadfly petrels''' are ]s in the ] order ]. These medium to large ]s feed on food items picked from the ocean surface.


The short, sturdy bills of the 32 '''''Pterodroma''''' ] in this group are adapted for soft prey taken at the surface; they have twisted intestines for digesting marine animals which have unusual biochemistries. The short, sturdy bills of the '''''Pterodroma''''' ] in this group, some 30 altogether, are adapted for soft prey taken at the surface; they have twisted intestines for digesting marine animals which have unusual biochemistries.


Their complex wing and face marking are probably for interspecific recognition. Their complex wing and face marking are probably for interspecific recognition.
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* ], '' Pterodroma mollis'' * ], '' Pterodroma mollis''
* ], '' Pterodroma feae'' * ], '' Pterodroma feae''
* ] or '''Madeira Petrel''', '' Pterodroma madeira'' * ] or Madeira Petrel, '' Pterodroma madeira''
* ], '' Pterodroma baraui'' * ], '' Pterodroma baraui''
* ], ''Pterodroma sandwichensis'' * ], ''Pterodroma sandwichensis''

Revision as of 14:15, 14 June 2006

Gadfly Petrels
File:Dark rumped petrel.jpeg
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Procellariiformes
Family: Procellariidae
Genus: Pterodroma
Bonaparte, 1856
Species

32, see text.

The gadfly petrels are seabirds in the bird order Procellariiformes. These medium to large petrels feed on food items picked from the ocean surface.

The short, sturdy bills of the Pterodroma species in this group, some 30 altogether, are adapted for soft prey taken at the surface; they have twisted intestines for digesting marine animals which have unusual biochemistries.

Their complex wing and face marking are probably for interspecific recognition.

These birds nest in colonies on islands and are pelagic when not breeding. One white egg is laid usually in a burrow or on open ground. They are nocturnal at the breeding colonies.

The species are:

Category: