Parents share in care and feeding, as this adult male so beautifully demonstrates. (Photo courtesy of Emily Romine)


A bluebird nest is surprisingly clean, as parents remove fecal material as soon as it appears.


Male babies show their trademark blue plumage at an early age. (Photos by Katie Friedman)


Dorene Scriven makes a trek down her bluebird trail at least once a week, observing and recording the progress of 49 feathered families.


Opening a nest box, she says, is “like Christmas – every time you open the box there’s some surprise in there.”