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Lifespan, longevity, and ageing

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Observations: These animals have been reported to live up to 14 years in the wild. It is likely, however, that they can live considerably longer since similar species can live over 30 years (http://bna.birds.cornell.edu/).
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Comprehensive Description

provided by Smithsonian Contributions to Zoology
Oceanodroma tristrami Salvin

SOOTY STORM PETREL

PELAGIC DISTRIBUTION.—The POBSP pelagic sightings of this species are from various positions around the Hawaiian Islands, with concentrations near the Hawaiian Leewards (breeding sites), as would be expected (Figure 116). A disjunct, high-density concentration was also recorded between 44° N and 45°N near 173°W. The latter records may pertain to tristrami populations from the Bonin or Izu islands, or possibly to Oceanodroma matsudairae from the Bonin Islands. It is extremely doubtful if tristrami could be differentiated from O. matsudairae in the field. No specimens are available to clarify which of the two species were seen here, but even if specimens were available, distinctions could not be made between the Hawaiian and Bonin Island populations of O. tristrami.

BREEDING BIOLOGY.—Sooty Storm Petrels have a disjunct breeding distribution, with populations at Torishima in the southern Izu Islands (Austin, 1952), the Bonin Islands, and the Hawaiian Leewards. The specific localities in the Leewards are Laysan, Pearl and Hermes Reef, and Midway. Richardson (1957:19) mentions the possibility of their breeding on Necker but gives no details. Bryan and Greenway (1944:96) record the species on Nihoa. Clapp and Woodward (1968:10) report recent POBSP records on Kure Atoll and French Frigate Shoals. The latter cite the collection of three specimens with definitely enlarged gonads on Kure (one each on 1 January 1964, 1 March 1965, and 12 December 1965). The January 1964 bird was one of two observed digging a burrow. Two other birds were observed digging a burrow on 2 April 1964, and one examined in the field between 30 December 1966 and 5 January 1967 had a completely bare brood patch. Others were seen on Kure between November and January during the years 1963 to 1967. Three specimens collected 1 to 3 January 1967 have greatly enlarged gonads. On 14 March 1967, one very small downy chick and another about three-quarters grown were found in shallow burrows under the grass on Whale-Skate Island, French Frigate Shoals. Amerson noted a fledgling here in early June 1967. I believe it very likely that the species will eventually be found nesting on Lisianski Island, which has an extensive habitat comparable to that which supports a sizable population on Laysan. From this latter island POBSP collected three specimens on 22 October 1966 with considerably enlarged gonads. Willett (1919) reports egg-laying on Laysan from 1 to 15 January.

Inadequate POBSP winter surveys in the Leewards, plus the very secretive nature of this storm petrel on the breeding grounds, make it difficult to obtain a clear picture of the breeding cycle. From available data it appears that the species is to be found on the breeding grounds during an extended period from at least October to May. Apparently December and January are peak egg-laying months; both young and adults are gone from the islands by mid-May.
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bibliographic citation
King, Warren B. 1974. "Pelagic studies of seabirds in the central and eastern Pacific Ocean." Smithsonian Contributions to Zoology. 1-277. https://doi.org/10.5479/si.00810282.158

Tristram's storm petrel

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Tristram's storm petrel or ʻakihikeʻehiʻale[2] (Hydrobates tristrami) is a species of seabird in the storm petrel family Hydrobatidae. The species' common and scientific name is derived from the English clergyman Henry Baker Tristram; the species can also be known as the sooty storm petrel. Tristram's storm petrel has a distribution across the north Pacific Ocean, predominantly in tropical seas.

This storm petrel has long, angular wings. This is likely the largest member of the storm petrel family, with a total length 24.5 to 27 cm (9.6 to 10.6 in), a wingspan of 54 to 57 cm (21 to 22 in) and a body mass of 71 to 120 g (2.5 to 4.2 oz) with average weights of 86.2 and 92 g (3.04 and 3.25 oz).[3][4] Its plumage is all over dark with a slightly pale rump and a pale grey bar on the upper wing. The species is colonial, nesting in the Northwest Hawaiian Islands, and in several small islands south of Japan, including the Bonin Islands and Izu. Colonies are attended at night, and the species breeds during the winter. At sea, the species is pelagic, feeding on squid and fish.

Tristram's storm petrel is considered near threatened. All of its breeding colonies in Hawaii are protected areas, but the species has undergone declines in the past due to introduced rats on Torishima Island.

Wikimedia Commons has media related to Oceanodroma tristrami.

In the early 21st century, the Tristam's storm petrel were included in a study of plastic ingestion by birds, at Tern Island in the French Frigate Shoals.[5]

The species is named after Reverend Henry Baker Tristram, who also collected natural history specimens.[6]

Taxonomy

The holotype specimen of Oceanodroma tristrami Salvin (Cat.Bds.Brit.Mus., 25,1896, p.347) is held in the vertebrate zoology collection of World Museum, National Museums Liverpool, with accession number NML-VZ T9781.[7] The specimen was collected by Lieutenant Gunn at Sendai Bay, Japan, July 1874, and came to the Liverpool national collection through the purchase of Henry Baker Tristram's collection. It was formerly defined in the genus Oceanodroma before that genus was synonymized with Hydrobates.[8]

References

  1. ^ BirdLife International (2019). "Hydrobates tristrami". IUCN Red List of Threatened Species. 2019: e.T22698535A155161970. doi:10.2305/IUCN.UK.2019-3.RLTS.T22698535A155161970.en. Retrieved 12 November 2021.
  2. ^ Gregg, Jason (12 May 2021). "Decolonizing Seabirds". Hakai Magazine. Retrieved 2021-05-14.{{cite web}}: CS1 maint: url-status (link)
  3. ^ Howell, S. N. (2012). Petrels, albatrosses, and storm-petrels of North America. Princeton University Press.
  4. ^ Dunning, John B. Jr., ed. (2008). CRC Handbook of Avian Body Masses (2nd ed.). CRC Press. ISBN 978-1-4200-6444-5.
  5. ^ "OBIS-SEAMAP Dataset - Tern Island Albatrosses - 1999".
  6. ^ Beolens, Bo; Watkins, Michael (2003). Whose Bird? Men and Women Commemorated in the Common Names of Birds. London: Christopher Helm. pp. 342–343.
  7. ^ R. Wagstaffe (1978-12-01). Type Specimens of Birds in the Merseyside County Museums (formerly City of Liverpool Museums).
  8. ^ "Taxonomic Updates – IOC World Bird List". Retrieved 2021-07-29.
  • Brooke, M. (2004). Albatrosses And Petrels Across The World Oxford University Press, Oxford, UK ISBN 0-19-850125-0
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Tristram's storm petrel: Brief Summary

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Tristram's storm petrel or ʻakihikeʻehiʻale (Hydrobates tristrami) is a species of seabird in the storm petrel family Hydrobatidae. The species' common and scientific name is derived from the English clergyman Henry Baker Tristram; the species can also be known as the sooty storm petrel. Tristram's storm petrel has a distribution across the north Pacific Ocean, predominantly in tropical seas.

This storm petrel has long, angular wings. This is likely the largest member of the storm petrel family, with a total length 24.5 to 27 cm (9.6 to 10.6 in), a wingspan of 54 to 57 cm (21 to 22 in) and a body mass of 71 to 120 g (2.5 to 4.2 oz) with average weights of 86.2 and 92 g (3.04 and 3.25 oz). Its plumage is all over dark with a slightly pale rump and a pale grey bar on the upper wing. The species is colonial, nesting in the Northwest Hawaiian Islands, and in several small islands south of Japan, including the Bonin Islands and Izu. Colonies are attended at night, and the species breeds during the winter. At sea, the species is pelagic, feeding on squid and fish.

Tristram's storm petrel is considered near threatened. All of its breeding colonies in Hawaii are protected areas, but the species has undergone declines in the past due to introduced rats on Torishima Island.

Wikimedia Commons has media related to Oceanodroma tristrami.

In the early 21st century, the Tristam's storm petrel were included in a study of plastic ingestion by birds, at Tern Island in the French Frigate Shoals.

The species is named after Reverend Henry Baker Tristram, who also collected natural history specimens.

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Habitat

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breeding on Hawaii and Volcano isl.

Reference

van der Land, J. (ed). (2008). UNESCO-IOC Register of Marine Organisms (URMO).

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