| Thanks joepyeweed! As far as the entrance hole being enlarged, I think that's a problem in terms of predators entering the box. I'm not certain, but it's my guess based on the premise there's a recommended entrance hole size to being with. I didn't do anything to keep squirrels out. Both squirrels and birds had put quite a bit of nesting material in the box, which we cleaned out after the owl exited one night. Besides Chris' Eastern Screech owl web site, the best info. I've gotten on E S owls has been from Frederick R. Gelbach's book, The Eastern Screech Owl. |
Here is a link that might be useful: owl box info.