1904 20th_century 4_toes aix_(genus) ambiguous_gender anas anatid ancient_art anseriform avian biped bird black_body black_feathers common_eider common_shelduck dabbling_duck duck eider feathered_wings feathers feet feral friedrich_specht grass group hi_res mallard membrane_(anatomy) multicolored_body multicolored_feathers nude outside plant ruddy_shelduck sea_duck shelduck signature text toes traditional_media_(artwork) water webbed_feet whistling_duck white-faced_whistling_duck white_body white_feathers wings wood_duck
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