del Hoyo, J.; Elliott, A.; Sargatal, J. 1996. Handbook of the Birds of the World, vol. 3: Hoatzin to Auks. Lynx Edicions, Barcelona, Spain.
Delany, S.; Scott, D. 2006. Waterbird population estimates. Wetlands International, Wageningen, The Netherlands.
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Recommended citation
BirdLife International (2024) Species factsheet: Bonaparte's Gull Larus philadelphia. Downloaded from
https://datazone.birdlife.org/species/factsheet/bonapartes-gull-larus-philadelphia on 08/12/2024.
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 08/12/2024.