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Petrel, Grey
 
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Bird Info
Bird Info
Photos
Observations
Conservation status
Scientific Name:
Procellaria cinerea
Location(s):
Africa, Argentina, Asia, Australasia, Australia, Brazil, Chile, Eastern Cape Province, Global, KwaZulu Natal Province, Melanesia, New Zealand, Peru, Polynesia, South Africa, South America, Southern Africa, Uruguay, Western Cape Province Read more
Related Reading
IUCN
Figures suggest a very tentative world population around 400,000 individuals, a figure that could be incorrect by a factor of 2-3 either way (Brooke 2004). A tally of the most recent figures, points to at least 80,000 pairs worldwide, but this figure is thought to be only a rough estimate. ...
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Wikipedia
The Grey Petrel is a member of the Procellaria genus, and in turn is member of the Procellariidae family, and the Procellariiformes order. 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.[ 3] 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.[ 4] ...
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