I believe the wingbars mark this as a newly fledged juvenile.
One of my favorite birds, very friendly
Eastern Phoebe (Sayornis phoebe)
21 July 2016
Denton, Denton County, Texas
Four nearly fully grown and already flying fledglings are in a nest nearby while one of their parents hunts for food, perched on a Cedar Elm, and at the ready.
The Eastern Phoebe (Sayornis phoebe) is a small passerine bird. This tyrant flycatcher breeds in eastern North America, although its normal range does not include the southeastern coastal USA.