Modifiers matching waterbird:

• larger,
• size,
• common,
• large,
• coastal,
• higher,
• beautiful,
• migratory,
• breeding,
• small,
• wild,
• majestic,
• rare,
• migrant,
• threatened,
• herbivorous,
• colonial,
• plus,
• feral,

Simple categories matching plus:

• ride,
• wildfowl,
• waterbird,
• instrument,
• event,