This old dairy barn's owl box has been used for many years by Barn owls. This year I saw these three owlets in it & a parent flew out as I peeked in. Also pictured is a recently deceased owl just outside the barn. Am guessing it was a 4th owlet who was preyed on.
Barn-owls (family Tytonidae) are one of the two families of owls, the other being the true owls, Strigidae. They are medium to large sized owls with large heads and characteristic heart-shaped faces. They have long, strong legs with powerful talons. They also differ from Strigidae in structural details relating in particular to the sternum and feet.