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Storm petrel or stormy petrel may refer to one of two bird
Storm petrel or stormy petrel may refer to one of two bird families
Family (from ) is a group of people related either by consanguinity (by recognized birth) or affinity (by marriage or other relationship). It forms the basis for social order. Ideally, families offer predictability, structure, and safety as ...
, both in the order Procellariiformes
Procellariiformes is an order (biology), order of seabirds that comprises four family (biology), families: the albatrosses, the Procellariidae, petrels and shearwaters, and two families of storm petrels. Formerly called Tubinares and still call ...
, once treated as the same family.
The two families are:
* Northern storm petrels (''Hydrobatidae'') are found in the Northern Hemisphere, although some species around the Equator
The equator is the circle of latitude that divides Earth into the Northern Hemisphere, Northern and Southern Hemisphere, Southern Hemispheres of Earth, hemispheres. It is an imaginary line located at 0 degrees latitude, about in circumferen ...
dip into the south.
* Southern storm petrels (Oceanitidae) are found in all oceans, although only white-faced storm petrel (breeding in the North Atlantic, in addition to the Southern Ocean) and Wilson's storm petrels (on migration) are found in the Northern Hemisphere.
References
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