Vancouver Bee Project will host its annual Mason Bee Cocoon Cleaning from 11:30 a.m. to 2 p.m. Nov. 9 at Fourth Plain Community Commons, 3101 E. Fourth Plain Blvd., Vancouver. This free, hands-on event will teach attendees how to clean out mason bee houses and cocoons, ensuring healthy bees for next season. The instructor will also discuss common diseases that can impact mason bees and how to prevent them. Registration isn’t necessary; just bring mason bee houses and cocoons. This kid-friendly event is also open to anyone who would like to stop by and learn more about mason bees and their homes. Learn more at vancouverbeeproject.org.