The Mountain Bluebird has traditionally relied on forest tree cavities excavated by woodpeckers for nest sites. Today, in artificial nest boxes, many Mountain Bluebirds breed, which tend to be establish in more open areas and have narrower gaps to keep out marauders and terrible weather. Much of what we know about Mountain Bluebirds derives from surveys of these breeding sites made by humans.
Ringtone, Alarm, Notification, SMS
mountain-bluebirds-ringtone.mp3 (25 downloads)