Janice C. Lorenzana kaj Spencer G. Sealy (1998) Adult brood parasites feeding nestlings and fledglings of their own species: A review. J. Field Ornithol., 69(3):364-375 [1]Arkivigite je 2010-08-09 per la retarkivo Wayback Machine
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Janice C. Lorenzana kaj Spencer G. Sealy (1998) Adult brood parasites feeding nestlings and fledglings of their own species: A review. J. Field Ornithol., 69(3):364-375 [1]Arkivigite je 2010-08-09 per la retarkivo Wayback Machine