Answer: There isn’t one birdhouse or nesting box design that will suit the needs of all bird species. In fact, not all species will even nest in a birdhouse, like cardinals, for example. Keep the Bird in Mind Some birds that nest in tree cavities will nest in birdhouses and this includes chickadees, bluebirds, house wrens and nuthatches. But again, there are particular design features and location preferences that need to be considered depending on the species you are hoping to attract! Let’s take the bluebird, for example. Bluebirds like open fields where there are a lot of insects. Placing a birdhouse for bluebirds sheltered among trees would not work very well. They also prefer single houses that are spaced about 100 metres apart that are placed 1.5 to 1.8 metres above the ground...[Read More] ------------------------------------------------------------------------------------ Continue reading the original article here: https://cwf-fcf.org/en/about-cwf/faq/faqs/there-are-so-many-birdhouses.html This article reproduced in part with permission from The Canadian Wildlife Federation.