From the Cornell Lab if Ornithologie comes this beautiful article of what kind of nest box to put up for which bird:
Have you always wanted to put up a birdhouse, but weren’t sure which species you could attract to your area? Or just not sure what birds need? Visit our new ALL ABOUT BIRDHOUSES.
With our Right Bird, Right House interactive, just enter your region + habitat type, and we’ll show you which birds you could attract with a nest box (or other nesting structure). With 54 birds to choose from, including declining species, you will find everything you need to support more nesting birds in your yard. Plus, lots of good landlord tips for continuing the success for many years.