Fulmars are identifiable by the prominent, tubular nostrils on top of their bills. Breeding pairs are monogamous and rejoin their mates each year at the same nest site. Fulmar chicks greet potential predators with a particularly hostile reception, bringing up a stinking oily substance from their stomachs and squirting it in an accurately aimed jet. Fulmars are one of the few species of bird with a well-developed sense of smell, which they employ to detect fish oil scents when searching for prey.

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