Northern storm petrel

Northern storm petrels
	European storm petrels The song of a European storm petrel, recorded on Skokholm Island, Pembrokeshire, Wales
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Aves
Order:	Procellariiformes
Family:	Hydrobatidae; Mathews, 1912
Genus:	Hydrobates; F. Boie, 1822
Type species
	Procellaria pelagica (European storm petrel); Linnaeus, 1758
Species
	See text
Synonyms
	Oceanodroma Reichenbach, 1853 Thalassidroma Vigors, 1825 Zalochelidon Billberg, 1828 Cymochorea Coues, 1864 Halocyptena Coues, 1864 Pacificodroma Bianchi, 1913 Bannermania Mathews & Iredale, 1915 Tethysia Mathews, 1933 Loomelania Mathews, 1934 Bianchoma Mathews, 1943 Stonowa Mathews, 1943 Thalobata Mathews, 1943 Hydrobatinae (Mathews, 1912)

Northern storm petrels are seabirds in the genus Hydrobates in the family Hydrobatidae, part of the order Procellariiformes. The family was once lumped with the similar austral storm petrels in the combined storm petrels, but have been split, as they were not closely related. These smallest of seabirds feed on planktonic crustaceans and small fish picked from the surface, typically while hovering. Their flight is fluttering and sometimes bat-like.

The northern storm petrels are found in the Northern Hemisphere, although some species around the Equator dip into the south. They are strictly pelagic, coming to land only when breeding. In the case of most species, little is known of their behaviour and distribution at sea, where they can be hard to find and harder to identify. They are colonial nesters, displaying strong philopatry to their natal colonies and nesting sites. Most species nest in crevices or burrows, and all but one species attend the breeding colonies nocturnally. Pairs form long-term, monogamous bonds and share incubation and chick-feeding duties. Like many species of seabirds, nesting is highly protracted, with incubation taking up to 50 days and fledging another 70 days after that.

Several species of storm petrel are threatened by human activities. One species, the Guadalupe storm petrel, is thought to have gone extinct. The principal threats to storm petrels are introduced species, particularly mammals, in their breeding colonies; many storm petrels habitually nest on isolated mammal-free islands and are unable to cope with predators such as rats and feral cats.

Up and down! - up and down!
From the base of the wave to the billow’s crown,
And amidst the flashing and feathery foam
The stormy petrel finds a home, -
A home, if such a place may be
For her who lives on the wide, wide sea.

O’er the deep! - o’er the deep!
Where the whale and the shark and the sword-fish sleep, -
Outflying the blast and the driving rain,
The petrel telleth her tale — in vain;
Yet he ne’er falters, - so, petrel, spring
Once more o’er the waves on thy stormy wing!

From "The Stormy Petrel" poem by Barry Cornwall^[1]

^ A Library of Poetry and Song: Being Choice Selections from The Best Poets. With An Introduction by William Cullen Bryant, New York, J.B. Ford and Company, 1871, p. 354.

[1] A Library of Poetry and Song: Being Choice Selections from The Best Poets. With An Introduction by William Cullen Bryant, New York, J.B. Ford and Company, 1871, p. 354.

[1]