These homely but charming baby birds are American Kestrels. The nest site is in an out-building at my son's company, SunCo Grounds Management, in Omaha, Nebraska. The American Kestrel is a small falcon which preys on small birds, mammals, and insects. The pair raising these hatchlings has nested here in past years and one of the employees regularly checks on them and takes photos which are posted on the SunCo facebook page. They are waiting for one more egg to hatch.