Modifiers matching wildfowl:

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

Simple categories matching resident:

• animal,
• bird,
• game,
• applicant,
• visa,
• predator,
• waterfowl,
• seabird,
• pet,
• fish,
• herbivore,
• organism,
• rodent,
• ungulate,
• mammal,
• pathogen,
• songbird,
• activity,
• amphibian,
• prey,
• wildfowl,
• item,
• program,
• cell,
• care,