Some years ago local officials, the local college and conservation commission led efforts to install hundreds of bluebird boxes on local public land and that did the trick. They’ve made a huge comeback.
Did you know that the bluebird is NY’s state bird? Plus the chickadees that took over the bluebird house are MA’s state bird. But I don’t consider that a conflict. ;-)
So........What made the huge comeback?...The boxes, or the birds?