You can take part in limited time events to gain special rewards!
Attract Event Birds using Event Advertising and when the Event Birds check out from your BnB they will drop Silver Bells. Collect these Silver Bells to unlock unique prizes, including decorations for your tree and coins. If 25 Event Birds check out of your BnB you will also receive an additional special reward!
Once you have collected all the decorations you can continue to play the event and collect coins. Don't forget to tale some photos of these special birds!