Longtime backyard feeder all the good stuff sunflower hearts, shelled peanuts, Mealworm, citrus, Nyjer. Just this past week noticed a male bluebird in my yard never seen here before. I did see a male once last year (same one?) So i went into my shop and banged together a bb nesting house based on a design i found online and hung it on a dead standing maple trunk (it's been limbed) in my backyard. Noticed a woodpecked hole 14 ft off ground with grass protruding on south side. Put a ladder up and at the top i got bird bombed! Nest had 3 small blue eggs. I immediately pulled the ladder and observed the nest all day. Now i saw the male and the female showed up. Both have entered and exited the nest . question: should i remove the box i built to discourage any other wanted or unwanted species from using?