Animalia > Chordata > Aves > Charadriiformes > Laridae > Creagrus > Creagrus furcatus

Creagrus furcatus (Swallow-tailed Gull)

Synonyms: Larus furcatus

Wikipedia Abstract

The swallow-tailed gull (Creagrus furcatus) is an equatorial seabird in the gull family, Laridae. It is the only species in the genus Creagrus, which derives from the Latin Creagra and the Greek kreourgos which means butcher, also from kreas, meat; according to Jobling it would mean "hook for meat" referring to the hooked bill of this species. It was first described by French naturalist and surgeon Adolphe-Simon Neboux in 1846. Its scientific name is originally derived from the Greek word for gull, "Glaros" and via Latin Larus, "gull" and furca "two-tined fork". It spends most of its life flying and hunting over the open ocean. The main breeding location is in the Galápagos Islands, particularly the rocky shores and cliffs of Hood, Tower and Wolf Islands, with lower numbers on most of the
View Wikipedia Record: Creagrus furcatus

EDGE Analysis

Uniqueness Scale: Similiar (0) 
3
 Unique (100)
Uniqueness & Vulnerability Scale: Similiar & Secure (0) 
20
 Unique & Vulnerable (100)
ED Score: 6.90953
EDGE Score: 2.06807
Learn more at EDGE of Existence programme

Attributes

Adult Weight [1]  1.515 lbs (687 g)
Diet [2]  Carnivore (Invertebrates), Piscivore
Diet - Fish [2]  50 %
Diet - Invertibrates [2]  50 %
Forages - Water Surface [2]  50 %
Forages - Underwater [2]  50 %
Clutch Size [4]  1
Fledging [3]  60 days
Incubation [4]  34 days
Migration [5]  Intracontinental
Wing Span [4]  4.297 feet (1.31 m)

Ecoregions

Protected Areas

Name IUCN Category Area acres Location Species Website Climate Land Use
Archipelago de Colon Biosphere Reserve 34336011 Galapagos Islands, Ecuador  

Important Bird Areas

Name Location  IBA Criteria   Website   Climate   Land Use 
Áreas costeras de Fernandina y del occidente de Isabela Ecuador A1, A2, A4i, A4ii
Isla Floreana Ecuador A1, A2, A4i, A4ii  
Isla San Cristóbal Ecuador A1, A2, A4i, A4ii    
Río Tambo y Lagunas de Mejía Peru A1, A2, A3, A4iii
Santuario de Fauna y Flora Malpelo Colombia A4ii, A4iii    

Biodiversity Hotspots

Name Location Endemic Species Website
Tumbes-Choco-Magdalena Colombia, Ecuador, Panama, Peru Yes

Prey / Diet

Range Map

External References

Citations

Attributes / relations provided by
♦ 1Harris, MP 1970. Breeding ecology of the Swallow-tailed Gull, Creagrus furcatus. Auk 87, 215-243
♦ 2Hamish Wilman, Jonathan Belmaker, Jennifer Simpson, Carolina de la Rosa, Marcelo M. Rivadeneira, and Walter Jetz. 2014. EltonTraits 1.0: Species-level foraging attributes of the world's birds and mammals. Ecology 95:2027
♦ 3Nathan P. Myhrvold, Elita Baldridge, Benjamin Chan, Dhileep Sivam, Daniel L. Freeman, and S. K. Morgan Ernest. 2015. An amniote life-history database to perform comparative analyses with birds, mammals, and reptiles. Ecology 96:3109
♦ 4del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona.
♦ 5Myers, P., R. Espinosa, C. S. Parr, T. Jones, G. S. Hammond, and T. A. Dewey. 2006. The Animal Diversity Web (online). Accessed February 01, 2010 at animaldiversity.org
♦ 6Jorrit H. Poelen, James D. Simons and Chris J. Mungall. (2014). Global Biotic Interactions: An open infrastructure to share and analyze species-interaction datasets. Ecological Informatics.
Ecoregions provided by World Wide Fund For Nature (WWF). WildFinder: Online database of species distributions, ver. 01.06 Wildfinder Database
Biodiversity Hotspots provided by Critical Ecosystem Partnership Fund
Abstract provided by DBpedia licensed under a Creative Commons License
Species taxanomy provided by GBIF Secretariat (2022). GBIF Backbone Taxonomy. Checklist dataset https://doi.org/10.15468/39omei accessed via GBIF.org on 2023-06-13; License: CC BY 4.0