Cavity nesters are defined as birds that build nests, lay eggs and raise young within a sheltered chamber. Sometimes this is a dead tree, rafters in the barn or even cliffs. This is the type of bird that inhabits your bird house. Common cavity nesters in Colorado are woodpeckers, chickadees, nuthatches, swallows, wrens, and bluebirds.  If you find a damaged or fallen nests of these species, please follow the steps below to safely reunite them with their feathered families in a new nest: Obtain a large plastic jug…