Posted 5/13/2012 23:15 (#2382103 - in reply to #2381391) Subject: RE: Barn swallows
North central, IA
Buy a cheap jar of clear petroleum jelly. Every time you knock a nest down, scrape the area clean and smear a thin layer of the petroleum jelly on the surface. They can't build there again because the nest won't stick.
Barn swallows
