Rebstock GA, Agüero ML, Boersma PD, Ebert LA, Gómez Laich A, Lisnizer N, Svagelj WS y Trivellini MM. 2010. Repeated observations of a Cape Gannet (Morus capensis) on the coast of Patagonia Argentina. Ostrich: Journal of African Ornithology 81 (2): 167-169.