Does anyone have advice on ridding bird houses of wasps?  A friend and
novice birder in Barnsville has several bird houses and normally cleans them
out each year.  This year several are home to wasps.  Is it safe to attempt
to clean them during the day when the wasps are out?  How?  She does not
want to use any chemicals.   Thanks for any suggestions.  Please reply
offline unless you think others could use the information.  Bonnie Coe AU
Park, DC