Robuta

https://pbase.com/mauriziolanini/image/131445654 Moriglione , Common pochard photo - Maurizio Lanini photos at pbase.com common pochard photo maurizio lanini pbase https://animaldiversity.org/accounts/Aythya_ferina/classification/ Aythya ferina (common pochard) | CLASSIFICATION | Animal Diversity Web aythya ferina common pochard animal diversity classification web