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Category:Pterodroma - BirdForum Opus

Shape of bill of a Black-capped Petrel, typical for a Pterodroma
Photo by njlarsen
Location: Dominica
click on image to see a larger version

Genus: Pterodroma

Description

As typical Tubenoses, these birds have tubes where nostrils normally are, as well as webbed feet. The bill shape is characteristic: compared to for example a Puffinus, this bill is equally wide at the nostrils but only 60% of the length. Most, if not all, of the species have a highly characteristic flight mode with swing-wing (not flapping) action, and frequent 'looping the loop', readily distinguishing them from shearwaters and fulmars. They are highly oceanic species, often travelling vast distances (several thousand kilometres) over open oceans even just to gather food for chicks in the nest.

Taxonomy

Pterodroma is a genus in the family Procellariidae.

Pseudobulweria vs. Pterodroma

Clements (2010) and Sibley & Monroe (1996) place Mascarene Petrel, Tahiti Petrel, Beck's Petrel and Fiji Petrel in Pterodroma. However, Howard & Moore, 2003, Brooke 2004, Christidis & Boles 2008, and Gill & Donsker 2010 recognise the genus Pseudobulweria.

Genus Pterodroma viewedit
P. macroptera Great-winged Petrel
P. gouldi Grey-faced Petrel
P. neglecta Kermadec Petrel
P. magentae Magenta Petrel
P. arminjoniana Trindade Petrel
P. heraldica Herald Petrel
P. ultima Murphy's Petrel
P. solandri Providence Petrel
P. atrata Henderson Petrel
P. madeira Zino's Petrel
P. feae Fea's Petrel
P. mollis Soft-plumaged Petrel
P. baraui Barau's Petrel
P. lessonii White-headed Petrel
P. inexpectata Mottled Petrel
P. cahow Bermuda Petrel
P. hasitata Black-capped Petrel
P. externa Juan Fernandez Petrel
P. incerta Atlantic Petrel
P. phaeopygia Galapagos Petrel
P. sandwichensis Hawaiian Petrel
P. cervicalis White-necked Petrel
P. hypoleuca Bonin Petrel
P. nigripennis Black-winged Petrel
P. axillaris Chatham Petrel
P. cookii Cook's Petrel
P. defilippiana Masatierra Petrel
P. leucoptera Gould's Petrel
P. brevipes Collared Petrel
P. longirostris Stejneger's Petrel
P. pycrofti Pycroft's Petrel
P. alba Phoenix Petrel
P. occulta Vanuatu Petrel
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