Creagrus furcatus, Swallow-tailed gull
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Creagrus furcatus   (Néboux, 1846)

Swallow-tailed gull

Native range | All suitable habitat | Point map | Year 2050
This map was computer-generated and has not yet been reviewed.
Creagrus furcatus  AquaMaps  Data sources: GBIF OBIS
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Classification / Names Common names | Synonyms | CoL | ITIS | WoRMS

Aves | Charadriiformes | Laridae

Environment: milieu / climate zone / depth range / distribution range Ecology

Others; depth range 0 - 1 m (Ref. 93225).  Subtropical; 11°N - 42°S, 98°W - 70°W

Distribution Countries | FAO areas | Ecosystems | Occurrences | Introductions

Southeast Pacific. From Costa Rica to Chile. Tropical to subtropical.

Length at first maturity / Size / Weight / Age

Maturity: Lm ?  range ? - ? cm Max length : 57.0 cm TL male/unsexed; (Ref. 84934); max. published weight: 740.00 g (Ref. 356)

Biology     Glossary (e.g. epibenthic)

The world's only night-feeding gull; It pursuits squid and nocturnal fish at open sea (Ref. 356). Breeding attempts occur between migration events (Ref. 93225). It feeds by surface plunging, having access to only 1 meter of the water column (Ref. 93225), and feeds between 16-32 km from coastline (Ref. 356). Foraging activity increases following the DVM cycle, during new moon periods (Ref. 93225).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Breeding is asynchronous, with breeding periods of different birds overlap to varying degrees.

Main reference References | Coordinator | Collaborators

Enticott, J. and D. Tipling 1997 Seabirds of the World: the complete reference. Singapore: New Holland (Publishers) Ltd. 234 p. (Ref. 84934)

IUCN Red List Status (Ref. 130435: Version 2025-1)

  Least Concern (LC) ; Date assessed: 08 August 2018

CITES status (Ref. 108899)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Human uses


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Ecology
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Length-weight rel.
Length-length rel.
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Abundance
Life cycle
Reproduction
Maturity
Fecundity
Spawning
Eggs
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Larvae
Distribution
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Introductions
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Human Related
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Taxonomy
Common names
Synonyms
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References
References

Internet sources

BHL | BOLD Systems | CISTI | DiscoverLife | FAO(Publication : search) | Fishipedia | GenBank (genome, nucleotide) | GloBI | Gomexsi | Google Books | Google Scholar | Google | PubMed | Tree of Life | Wikipedia (Go, Search) | Zoological Record

Estimates based on models

Fishing Vulnerability (Ref. 71543): Moderate vulnerability (43 of 100).
Price category (Ref. 80766): Unknown.

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