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Burger i inni, Bonaparte's Gull (Larus philadelphia), [w:] del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (red.). Handbook of the Birds of the World Alive [online], Lynx Edicions, Barcelona, 2020 [zarchiwizowane z adresu 2020-05-10].
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David C.D.C.DuffyDavid C.D.C., NatashaN.AtkinsNatashaN., A Second Breeding Record for the Grey-Hooded Gull (Larus cirrocephalus) on the Coast of Peru, „The Condor”, 81 (2), 1979, s. 219, DOI: 10.2307/1367302, JSTOR: 1367302.