Hook shearwater
| Hook shearwater | ||||||||
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Devil Petrel ( Pterodroma hasitata ) |
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| Systematics | ||||||||
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| Scientific name | ||||||||
| Pterodroma | ||||||||
| Bonaparte , 1856 |
Hook shearwaters ( Pterodroma ) are a genus of birds from the petrel family (Procellariidae).
The hook shearwater are deep sea birds that are common in all oceans. In addition to the hook-shaped beak at the tip, they are characterized by long wings and a short tail. Outside the breeding season, they spend their entire life on the high seas and are able to adapt to even the most difficult weather conditions. They eat small fish and marine invertebrates, which they prey just below the surface of the sea. Hook shearwaters are a maximum of 85 centimeters long.
The Bermuda petrel ( Pterodroma cahow ), a hook shearwater, is believed to be one of the rarest sea birds in the world. The species was almost extinct in the 17th century because it was captured by introduced mammals in its range around Bermuda . Due to protective measures, the stocks have now recovered somewhat. The Bermuda petrel is not the only species of this genus that is endangered. The IUCN classifies also the Phoenix Petrel as endangered ( endangered ) and estimates the stock to 30,000 mature individuals.
The St. Helena giant petrel ( Pterodroma rupinarum ) is only known from subfossil bone material from the island of St. Helena. The species died out during the early colonization of St. Helena in the 16th century.
species
- Phoenix petrel ( Pterodroma alba )
- Trinidad petrel ( Pterodroma arminjoniana )
- Henderson petrel ( Pterodroma atrata )
- Chatham petrel ( Pterodroma axillaris )
- Barau petrel ( Pterodroma baraui )
- Chest-band petrel ( Pterodroma brevipes )
- Bermuda petrel ( Pterodroma cahow )
- Jamaican petrel ( Pterodroma caribbaea )
- White-naped petrel ( Pterodroma cervicalis )
- Cook petrel ( Pterodroma cookii )
- Juan Fernandez Petrel ( Pterodroma defilippiana )
- Salvin Petrel ( Pterodroma externa )
- Cape Verde Petrel ( Pterodroma feae )
- Gould petrel ( Pterodroma gouldi )
- Devil Petrel or Black- capped Shearwater ( Pterodroma hasitata )
- Crest petrel ( Pterodroma heraldica )
- Bonin's petrel ( Pterodroma hypoleuca )
- Schlegel Petrel ( Pterodroma incerta )
- Rain shearwater ( Pterodroma inexpectata )
- Bald Petrel ( Pterodroma lessonii )
- White-winged petrel ( Pterodroma leucoptera )
- Stejneger petrel Pterodroma longirostris
- Long-winged petrel ( Pterodroma macroptera )
- Madeira petrel ( Pterodroma madeira )
- Magenta petrel ( Pterodroma magentae )
- Soft-feathered petrel ( Pterodroma mollis )
- Kermadec petrel ( Pterodroma neglecta )
- Black-wing petrel ( Pterodroma nigripennis )
- Vanuatus petrel ( Pterodroma occulta )
- Black Petrel ( Pterodroma parkinsoni )
- Galapagos petrel ( Pterodroma phaeopygia )
- Pycroft petrel ( Pterodroma pycrofti )
- Hawaiian petrel ( Pterodroma sandwichensis )
- Solander petrel ( Pterodroma solandri )
- Murphy petrel ( Pterodroma ultima )
- Imber petrel ( Pterodroma imberi )
literature
- PJ Higgins (Ed.): Handbook of Australian, New Zealand & Antarctic Birds , Volume 1, Ratites to Ducks, Oxford University Press, Oxford 1990, ISBN 0195530683
Web links
Single receipts
- ↑ BirdLife factsheet on the Phoenix Petrel , accessed May 28, 2011