I discovered a pair of chickadees are nesting in a birdhouse that stayed vacant all last year (except that a paper wasp nest was hanging inside). At first when I saw them going in and out a time or two I thought they might be nesting, but yesterday when I tried to see in the hole in front of the box I noticed the wasp nest and assumed they wouldn’t be nesting in the box like that. Fortunately, the wasp nest