Petrels

Among the procellariids, the prions concentrate on small crustacea, the fulmarine petrels take fish and krill but little squid, while the Procellaria petrels consume mainly squid.

There are few instances of petrels in culture, although there are sailors' legends regarding the storm petrels, which are considered to warn of oncoming storms.

While some other species of fulmarine and Procellaria petrels also take carrion, the diet of most species of albatrosses and petrels is dominated by fish, squid, krill and other marine zooplankton.

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Storm petrels typically nest on islands, but now, others have been seen in inland deserts and mountains.

All Procellariiformes create stomach oil except the diving-petrels.

Brooke, 2004. p. 127 Petrels obtain food by snatching prey while swimming on the surface, snatching prey from the wing or diving down under the water to pursue prey.

Eagles have been confirmed to attack nocturnally active, burrow-nesting seabird species such as storm petrels and shearwaters by digging out their burrows and feeding on all animals they find inside.

Larger species of petrels will even kill the chicks and even adults of smaller species in disputes over burrows.

Most, except the giant petrels, have weak legs and are nearly helpless on land.

Petrels have a plate called the maxillary unguis that forms a hook on the maxilla.

Procellariiformes are long-lived: the longest living albatross known survived for 51 years, but was probably older, citation and even the tiny storm-petrels are known to have survived for 30 years.

The albatrosses and petrels are "amongst the most severely threatened taxa worldwide".

The storm petrels take small droplets of oil from the surface of the water, citation as well as small crustaceans and fish.

Warham, J. (1990) The Petrels – Their Ecology and Breeding Systems London: Academic Press.

Within the colonies, pairs defend usually small territories (the giant petrels and some albatrosses can have very large territories) which is the small area around either the nest or a burrow.