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Salvin's prion
Salvin's prion, ''Pachyptila salvini'', also known as medium-billed prion, is a species of seabird in the petrel family Procellariidae.
==Taxonomy==
Salvin's prion is a member of the ''Pachyptila'' genus, and along with the blue petrel, they make up the prions. They in turn are members of the Procellariidae family, and the Procellariiformes order. The prions are small and typically eat just zooplankton;〔Maynard, B. J. (2003)〕 however as a member of the Procellariiformes, they share certain identifying features. First, they have nasal passages that attach to the upper bill called naricorns. Although the nostrils on the prion are on top of the upper bill. The bills of Procellariiformes are also unique in that they are split into between 7 and 9 horny plates. They produce a stomach oil made up of wax esters and triglycerides that is stored in the proventriculus. This is used against predators as well as an energy rich food source for chicks and for the adults during their long flights.〔Double, M. C. (2003)〕 Finally, they also have a salt gland that is situated above the nasal passage and helps desalinate their bodies, due to the high amount of ocean water that they imbibe. It excretes a high saline solution from their nose.〔Ehrlich, Paul R. (1988)〕
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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