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Keywords from Image Description:
Nyctipolus hirundinaceus from Spix . Nyctipolus hirundinaceus Artwork by von Spix org Avium species novae quas in itinere per Brasiliam annis MDCCCXVIIMDCCCXX at Biodiversity Heritage Library Johann Baptist von Spix PDold Cropped and light levels adjusted from original Nyctipolus hirundinaceus Johann Baptist von Spix