White-faced storm petrel

The white-faced storm petrel (Pelagodroma marina), also known as white-faced petrel is a small seabird of the austral storm petrel family Oceanitidae. It is the only member of the monotypic genus Pelagodroma.

White-faced storm petrel photographed in Tasmania, Australia
White-faced storm petrel photographed in Hauraki Gulf, New Zealand

White-faced storm petrel

Least Concern  (IUCN 3.1)[1]
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Procellariiformes
Family: Oceanitidae
Genus: Pelagodroma
L. Reichenbach, 1853[2]
Species:
P. marina
Binomial name
Pelagodroma marina
(Latham, 1790)
Synonyms
  • Procellaria marina Latham, 1790[3]

Description

The white-faced storm petrel is 19 to 21 centimetres (7.5 to 8.3 in) in length with a 41 to 44 centimetres (16 to 17 in) wingspan. It has a pale brown to grey back, rump and wings with black flight feathers. It is white below, unlike other north Atlantic petrels, and has a white face with a black eye mask like a phalarope. Its plumage makes it one of the easier petrels to identify at sea.

Behaviour

The white-faced storm petrel is strictly pelagic outside the breeding season, and this, together with its often-remote breeding sites, makes this petrel a difficult bird to see from land. Only in severe storms might this species be pushed into headlands. There have been a handful of western Europe records from France, the United Kingdom and the Netherlands. It has a direct gliding flight and will patter on the water surface as it picks planktonic food items from the ocean surface. It is highly gregarious, but does not follow ships. Like most petrels, its walking ability is limited to a short shuffle to the burrow.

Breeding
Egg - MHNT

The white-faced storm petrel breeds on remote islands in the south Atlantic, such as Tristan da Cunha and also Australia and New Zealand. There are north Atlantic colonies on the Cape Verde Islands, Canary Islands and Savage Islands. It nests in colonies close to the sea in rock crevices and lays a single white egg. It spends the rest of the year at sea. It is strictly nocturnal at the breeding sites to avoid predation by gulls and skuas, and will even avoid coming to land on clear moonlit nights.

Subspecies

Here are six recognised subspecies, breeding in island colonies through subtropical to subantarctic regions of the Atlantic, Indian and south-western Pacific Oceans:[4][5]

Status and conservation

Widespread throughout its large range, the white-faced storm petrel is evaluated as Least Concern on the IUCN Red List of Threatened Species.

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gollark: Too bad.
gollark: And I have made the axiom of choice.
gollark: I mean, they have, but by us for convenience.
gollark: Perhaps they would have done this if they had ever entered operation. However, as of now they are merely inert hexahedra contained at GTech™ Hyperbolic Site-6906.

References
  1. BirdLife International (2012). "Pelagodroma marina". IUCN Red List of Threatened Species. 2012. Retrieved 26 November 2013.CS1 maint: ref=harv (link)
  2. Reichenbach, L. (1852). Das natürliche System der Vögel. Dresden und Leipzig. p. IV.
  3. Latham, Joannis (1790). "Genus XCV. Procellaria". Index ornithologicus. 2. Londini: Sumptibus authoris. p. 826.
  4. "Pelagodroma marina (Latham, 1790)". ITIS. Retrieved 2013-07-16.
  5. "White-faced Storm Petrel". Avibase. Retrieved 2013-07-16.
  6. Murphy, Robert Cushman; Irving, Susan (1951). "A Review of the Frigate-petrels (Pelagodroma)". American Museum Novitates. 1506: 1–17. hdl:2246/3964.
  7. Mathews, Gregory M. (1912). "Genus--Pelagodroma". The Birds of Australia. 2. London: Witherby. pp. 19–30.
  8. Bourne, W. R. P. (1953). "On the Races of the Frigate Petrel, Pelagodroma marina (Latham) with a New Race from the Cape Verde Islands". Bulletin of the British Ornithologists' Club. 73 (7): 79–82.
  9. Webb, P. B.; Berthelot, S.; Moquin-Tandon, Alfred. Ornithologie canarienne. Histoire Naturelle des Îles Canaries. 2 (2). Paris: Bèthune. pp. 45–56.
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