Minnesota, Sialia sialis, Wisconsin, bird, bird house, blue, bluebird, bluebird houses, bugs, cavity nest, cavity-nester, come-back, eastern, eastern bluebird, farmland, farms, feathers, feeding offspring, feeding young, fence, fence post, fly, forest, forest-edge, fruit, insects, mealworms, migrate, moth, nest, nesting cavity, northern, orange, perch, perched, perching female, post, re-established, remarkable comeback, rusty red breast, sing, sky blue, sky blue head, small bird, song, success story, tree, white, wings, woods