Our backyard feeder is plagued by squirrels. It wouldn't be so bad but they're such hogs. They'll knock the top off the feeder and eat it out from the top. I started putting chili pepper flakes in the mix on the theory that it would bug the squirrels but not the birds but they seem to be Mexican squirrels. I started swearing and hurly imprecations at them in Spanish, calling them mojados and things far worse to only slight effect. Yesterday, while I was off at work, the lovely AnnaS watched while a blue jay came down to feed off the scatterings on the ground and the squirrels split. Must be the jay works for la Migra.