A monograph of the pheasants /.
London, England :Published under the auspices of the New York Zoological Society by Witherby & Co.,1918-1922..
biodiversitylibrary.org/page/40819318
Description: Polyplectron napoleonis in de Filipijnenhal van Avifauna, Alphen aan de Rijn. Date: 22 November 2010. Source: Own work. Author: Magalhães. Permission(Reusing this file): PD.
Description: English: The Palawan Peacock-pheasant (Polyplectron napoleonis) is a medium-sized (up to 50 cm long) bird in the family Phasianidae. Date: 9 November 2019, 11:44:35. Source: Own work. Author: Ranieljosecastaneda.
No machine-readable author provided. Stavenn assumed (based on copyright claims).
Wikimedia Commons
Description: English: Description: Palawan Peacock Pheasant - Source: own work - Location: Bronx Zoo, New York - Author: self, User:Stavenn. Source: No machine-readable source provided. Own work assumed (based on copyright claims). Author: No machine-readable author provided. Stavenn assumed (based on copyright claims).
Description: Polyplectron napoleonis in de Filipijnenhal van Avifauna, Alphen aan de Rijn. Date: 22 November 2010. Source: Own work. Author: Magalhães. Permission(Reusing this file): PD.