Q: What happened to my bluebird house? Was it squirrels or raccoons?

A: I think either a gray squirrel or a flying squirrel did the damage.

I lean toward flying squirrel because I took down a damaged bluebird box one time and a flying squirrel bounced out of it and scurried up the tree.

Scared me nearly to death!!

This is in reference to the bluebird house flying squirrel problem I had when I emailed you several weeks ago.  Attached are pictures with a fix that I think will work.  I bought a “metal wall outlet cover” from Home Depot that is 1/16″ smaller than the recommended 1.5″ opening for the bluebirds’ house.  I used the metal outlet cover to shield the wooden opening on the birdhouse.  The pesky, wood gnawing squirrels will have to eat metal to get in now.