Stercorarius longicaudus - Vieillot, 1819
Long-tailed Jaeger
Other Common Names: Mindrião-de-Cauda-Comprida, Rabo-de-Junco-Preto
Taxonomic Status: Accepted
Related ITIS Name(s): Stercorarius longicaudus Vieillot, 1819 (TSN 176794)
French Common Names: labbe à longue queue
Spanish Common Names: Salteador Cola Larga
Unique Identifier: ELEMENT_GLOBAL.2.100027
Element Code: ABNNM01030
Informal Taxonomy: Animals, Vertebrates - Birds - Other Birds
Image 10779

© Dick Cannings

 
Kingdom Phylum Class Order Family Genus
Animalia Craniata Aves Charadriiformes Stercorariidae Stercorarius
Genus Size: C - Small genus (6-20 species)
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Concept Reference
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Concept Reference: American Ornithologists' Union (AOU). 1998. Check-list of North American birds. Seventh edition. American Ornithologists' Union, Washington, D.C. [as modified by subsequent supplements and corrections published in The Auk]. Also available online: http://www.aou.org/.
Concept Reference Code: B98AOU01NAUS
Name Used in Concept Reference: Stercorarius longicaudus
Conservation Status
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NatureServe Status

Global Status: G5
Global Status Last Reviewed: 10Apr2016
Global Status Last Changed: 26Nov1996
Ranking Methodology Used: Ranked by inspection
Rounded Global Status: G5 - Secure
Nation: United States
National Status: N5B (05Jan1997)
Nation: Canada
National Status: N5B,N5M (29Jan2018)

U.S. & Canada State/Province Status
Due to latency between updates made in state, provincial or other NatureServe Network databases and when they appear on NatureServe Explorer, for state or provincial information you may wish to contact the data steward in your jurisdiction to obtain the most current data. Please refer to our Distribution Data Sources to find contact information for your jurisdiction.
United States Alaska (S5B), California (SNA), Delaware (SNA), Florida (SNA), Maine (SNA), Maryland (SNA), Massachusetts (S1N), Michigan (SNRN), New Jersey (SNA), New York (SNRN), North Carolina (SNA), Oregon (SNA), Vermont (SNA), Virginia (SNA), Washington (SNA)
Canada British Columbia (SNRM), Labrador (S4N), Manitoba (S1B), Newfoundland Island (S3N), Northwest Territories (SUB), Nova Scotia (SNA), Nunavut (S5B,S5M), Ontario (SNA), Quebec (S3B), Yukon Territory (S4B)

Other Statuses

IUCN Red List Category: LC - Least concern

NatureServe Global Conservation Status Factors

Range Extent Comments: Circumpolar. BREEDS: in arctic of Alaska, Canada and Greenland; in Old World from Jan Mayen, Spitsbergen, northern Eurasia. NONBREEDING: at sea in Atlantic and Pacific Oceans, more commonly in cold southern localities (Godfrey 1966) such as off Argentina and Chile.

Short-term Trend Comments: See Evans (1984) for status in Greenland.

Other NatureServe Conservation Status Information

Distribution
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Global Range: Circumpolar. BREEDS: in arctic of Alaska, Canada and Greenland; in Old World from Jan Mayen, Spitsbergen, northern Eurasia. NONBREEDING: at sea in Atlantic and Pacific Oceans, more commonly in cold southern localities (Godfrey 1966) such as off Argentina and Chile.

U.S. States and Canadian Provinces

Due to latency between updates made in state, provincial or other NatureServe Network databases and when they appear on NatureServe Explorer, for state or provincial information you may wish to contact the data steward in your jurisdiction to obtain the most current data. Please refer to our Distribution Data Sources to find contact information for your jurisdiction.
Color legend for Distribution Map
NOTE: The maps for birds represent the breeding status by state and province. In some jurisdictions, the subnational statuses for common species have not been assessed and the status is shown as not-assessed (SNR). In some jurisdictions, the subnational status refers to the status as a non-breeder; these errors will be corrected in future versions of these maps. A species is not shown in a jurisdiction if it is not known to breed in the jurisdiction or if it occurs only accidentally or casually in the jurisdiction. Thus, the species may occur in a jurisdiction as a seasonal non-breeding resident or as a migratory transient but this will not be indicated on these maps. See other maps on this web site that depict the Western Hemisphere ranges of these species at all seasons of the year.
Endemism: occurs (regularly, as a native taxon) in multiple nations

U.S. & Canada State/Province Distribution
United States AK, CA, DE, FL, MA, MD, ME, MI, NC, NJ, NY, OR, VA, VT, WA
Canada BC, LB, MB, NF, NS, NT, NU, ON, QC, YT

Range Map
Note: Range depicted for New World only. The scale of the maps may cause narrow coastal ranges or ranges on small islands not to appear. Not all vagrant or small disjunct occurrences are depicted. For migratory birds, some individuals occur outside of the passage migrant range depicted. For information on how to obtain shapefiles of species ranges see our Species Mapping pages at www.natureserve.org/conservation-tools/data-maps-tools.

Range Map Compilers: NatureServe, 2002; WILDSPACETM 2002

Ecology & Life History
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Reproduction Comments: Eggs are laid mainly mid- to late June. Both adults, in turn, incubate 2, sometimes 1-3, eggs for 23-25 days. Hatching was recorded in second week of July on Ellesmere Island. Young are tended by both parents, fledge in 22-28 days, attended by adults for 10-21 days after fledging. Second-hatched chick in most broods usually does not survive (Johnson and Herter 1989).
Ecology Comments: Pairs defend large territories, but often hunt over an area larger than the territory; in northern Sweden, hunted up to 2.7 kilometers from nuest, usually less than 700 meters (Andersson 1971).
Non-Migrant: N
Locally Migrant: N
Long Distance Migrant: Y
Mobility and Migration Comments: Migrates northward to nesting grounds, arriving late May-June (mostly mid-June on Banks Island). Migrating birds are uncommon off west coast, very rare inland and off east and Gulf coasts (National Geographic Society 1983). Nonbreeders begin southward migration in early July, breeders depart August-September. Migrates through tropics April-May and September-October (Pratt et al. 1987).
Marine Habitat(s): Pelagic
Terrestrial Habitat(s): Alpine, Tundra
Habitat Comments: Nonbreeding: pelagic, casually along seacoasts and on inland waters (AOU 1983). Nests in open or alpine tundra, flats with sparse vegetation, and moorlands (AOU 1983). Most often in well-drained upland areas, also in dry tundra in low-lying areas; nest usually on mound or hummock (Johnson and Herter 1989). Nests on the ground in a depression, into which it may scrape small amounts of grass, leaves or moss. May nest among rocks.
Adult Food Habits: Carnivore, Invertivore, Piscivore
Immature Food Habits: Carnivore, Invertivore, Piscivore
Food Comments: On tundra feeds on lemmings and mice; also eats insects, fishes, carrion, berries, and eggs and small birds. Less apt to harry seabirds for food than are other jaegers (Terres 1980). Young initially are fed insects for a few days, then change to lemmings partially digested by parent (Johnson and Herter 1989).
Adult Phenology: Diurnal
Immature Phenology: Diurnal
Length: 56 centimeters
Weight: 313 grams
Economic Attributes Not yet assessed
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Management Summary Not yet assessed
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Population/Occurrence Delineation
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Use Class: Breeding
Minimum Criteria for an Occurrence: Evidence of breeding (including historical); and potential recurring breeding at a given location, minimally a reliable observation of one or more breeding pairs in appropriate habitat. Be cautious about creating EOs for observations that may represent single breeding events outside the normal breeding distribution.
Separation Barriers: None.
Separation Distance for Unsuitable Habitat: 15 km
Separation Distance for Suitable Habitat: 15 km
Separation Justification: No information on home ranges; separation distance based on data from Parasitic Jaeger. Hunting-type populations of the latter space nests 0.9 to 7.3 kilometers apart (Wiley and Lee 1999).
Inferred Minimum Extent of Habitat Use (when actual extent is unknown): .9 km
Inferred Minimum Extent Justification: Hunting populations in arctic North America space nests at least 0.9 kilometres apart (Wiley and Lee 1999).
Date: 16Nov2001
Author: Cannings, S.

Use Class: Migratory stopover
Minimum Criteria for an Occurrence: Evidence of recurring presence of migrating birds (including historical); and potential recurring presence at a given location. Normally only areas where concentrations greater than 15 birds regularly occur for more than 7 days per year would be deemed EO. Be cautious about creating EOs for observations that may represent single events.
Separation Barriers: None.
Separation Distance for Unsuitable Habitat: 20 km
Separation Distance for Suitable Habitat: 20 km
Separation Justification: Distance arbitrary; occurrences based primarily on concentrations of migrating birds, rather than by distinct populations.
Date: 17Apr2002
Author: Cannings, S.
Population/Occurrence Viability
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U.S. Invasive Species Impact Rank (I-Rank) Not yet assessed
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Authors/Contributors
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Element Ecology & Life History Edition Date: 10Jan1990
Element Ecology & Life History Author(s): Hammerson, G.

Zoological data developed by NatureServe and its network of natural heritage programs (see Local Programs) and other contributors and cooperators (see Sources).

References
Help
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  • Canadian Wildlife Service. 2001. Birds of the Yukon database. Environment Canada, Whitehorse, Yukon.

  • Cannings, S. 2001. EO Specifications for Long-tailed Jaeger (Stercorarius longicaudus). NatureServe, Unpublished. 1 pp.

  • Chardine, J.W. (ed). 1999. Overview of seabird status and conservation in Canada. Bird Trends (Canadian Wildlife Service) 7: 1-7.

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  • Gaston, A.J. 1996. Conservation issues and Canadian Wildlife Service priorities for marine birds. Canadian Wildlife Service. 32 pp.

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  • Godfrey, W.E. 1966. The birds of Canada. National Museums of Canada. Ottawa. 428 pp.

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