File:Hardhead male 2.jpg

DescriptionHardhead male 2.jpg English: A male Hardhead duck, Aythya australis, in Victoria Park, Sydney. Français : Fuligule austral mâle, Aythya australis

https://creativecommons.org/licenses/by/2.0CC BY 2.0 Creative Commons Attribution 2.0 truetrue 27 December 2015 English sex or gender: male organism Flickr user ID:

https://creativecommons.org/licenses/by/2.0CC BY 2.0 Creative Commons Attribution 2.0 truetrue 27 December 2015 English sex or gender: male organism Flickr user ID:

org/licenses/by-sa/2.0CC BY-SA 2.0 Creative Commons Attribution-Share Alike 2.0 truetrue 19 August 2019 English sex or gender: male organism Flickr user

DescriptionHardhead male-crop.jpg English: A male Hardhead duck, Aythya australis, in Victoria Park, Sydney. Date 2 August 2011 Source Own work Author