del Hoyo, J.; Elliott, A.; Sargatal, J. 1996. Handbook of the Birds of the World, vol. 3: Hoatzin to Auks. Lynx Edicions, Barcelona, Spain.
Hockey, P.A.R.; Dean, W.R.J.; Ryan, P.G. 2005. Roberts Birds of Southern Africa. Trustees of the John Voelcker Bird Book Fund, Cape Town, South Africa.
Urban, E.K.; Fry, C.H.; Keith, S. 1986. The Birds of Africa, Volume II. Academic Press, London.
Williams, A. J.; Steele, W. K.; Cooper, J.; Crawford, R. J. M. 1990. Distribution, population size and conservation of Hartlaub's Gull Larus hartlaubii. Ostrich 61(1-2): 66-76.
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Recommended citation
BirdLife International (2024) Species factsheet: Hartlaub's Gull Larus hartlaubii. Downloaded from
https://datazone.birdlife.org/species/factsheet/hartlaubs-gull-larus-hartlaubii 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.