Category Nuances matching wildfowl:

• migratory,
• plus,
• breeding,
• aquatic,
• herbivorous,
• ornamental,
• dead,
• resident,

Members for simple category wildfowl:

• tufted_duck,
• brent_goose,
• egyptian_goose,
• wild_duck,
• duck,
• goose,
• mallard_duck,