Idaho Mountain Bluebird TeeIdaho Mountain Bluebird Tee The Mountain Bluebird is the bluest bird in North America that electric, sky saturated plumage on the male isn't structural trickery, it's pure pigment that practically glows against Idaho's sagebrush and snow. Idaho's state bird hovers low over open ground while hunting insects, a hunting style more like a tiny kestrel than a typical songbird. Each spring, Mountain Bluebirds return to Idaho's high meadows and mountain