Simple categories matching plus:

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

Members with property plus:

• ice_carving,
• carousel,
• shower,
• duck,
• cultural_explosion,
• teen_splash,
• retirement_party,
• mascot_game,
• brent_goose,
• circus,
• election,
• european_championship,
• acoustic_music,
• flute,
• pop_idol,
• concert,
• carnival,
• graduation,
• power,
• golf_outing,
• art_auction,