Croxall, J. P.; Evans, P. G. H.; Schreiber, R. W. 1984. Status and conservation of the world's seabirds. International Council for Bird Preservation, Cambridge, U.K.
del Hoyo, J.; Elliott, A.; Sargatal, J. 1996. Handbook of the Birds of the World, vol. 3: Hoatzin to Auks. Lynx Edicions, Barcelona, Spain.
Valle, C. A.; Cruz, F.; Cruz, J. B.; Merlen, G.; Coulter, M. C. 1987. The impact of the 1982-1983 El NiƱo-Southern Oscillation on seabirds in the Galapagos Islands, Ecuador. Journal of Geophysical Research 92: 14,437-441,444.
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Recommended citation
BirdLife International (2024) Species factsheet: Swallow-tailed Gull Creagrus furcatus. Downloaded from
https://datazone.birdlife.org/species/factsheet/swallow-tailed-gull-creagrus-furcatus on 22/11/2024.
Recommended citation for factsheets for more than one species: BirdLife International (2024) IUCN Red List for birds. Downloaded from
https://datazone.birdlife.org/species/search on 22/11/2024.