Figure 2 from: Koch A (2018) Discovery of a rare hybrid specimen known as Maria's bird of paradise at the Staatliches Naturhistorisches Museum in Braunschweig. Zoosystematics and Evolution 94(2): 315-324. https://doi.org/10.3897/zse.94.25139

Figure 2 Plates of Paradisaea guilielmi (A) and P. raggiana augustaevictoriae (B), the presumed parental species of P. maria, related to the original descriptions by Cabanis (1888). Reproduced from the Biodiversity heritage library (http://biodiversitylibrary.com/).