Sub-species: Knipolegus orenocensis xinguensis | Maria-preta-ribeirinha Date: 1937-09-14 Country: Brasil
Institution: Museu de Zoologia de São Paulo Collection: Coleção de Aves do MZUSP Basis of record: Preserved specimen Catalogue number: birdsMZUSP:17609 View record
Sub-species: Knipolegus orenocensis xinguensis | Maria-preta-ribeirinha Date: 1937-09-12 Country: Brasil
Institution: Museu de Zoologia de São Paulo Collection: Coleção de Aves do MZUSP Basis of record: Preserved specimen Catalogue number: birdsMZUSP:17610 View record