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The Northern Fulmar produces 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. The oil can destroy the plumage of avian predators and eventualy lead to their death.

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Filename: Fulmar EGfyllDSC_0057.jpg
Copyright: Einar Gudmann
Image Size: 1998x1332 / 1.7MB; www.gudmann.is; Fýll Northern Fulmar Fulmarus glacialis Iceland nature Europe environment fuglar bird birds fugl fugler wildlife animal animals fauna avis aves fowl game
Contained in galleries: Birds complete, Fyll, Fulmars

The Northern Fulmar produces 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. The oil can destroy the plumage of avian predators and eventualy lead to their death.