Bluebird houses in Dunstable, MA

On Sunday afternoon we went for a nice walk in the woods along an old abandoned rail line in Dunstable, MA as part of the Arch Bridge Conservation area. This line bordered a former quarry and in that area we came across some Bluebird houses. It is an excellent example of ecological succession, since the quarry is no longer being worked shrubs and small trees are taking hold along with plenty of grasses and windflowers, a perfect habitat for bluebirds to nest.