[Doves Witness]

Among feral pigeons, fledglings are inseparable for a month or so after leaving the nest, then they go their separate ways. After that they treat one another the same way that they would treat any member of the flock. The circumstances of the separation are no doubt causing stress for the bird, but the timing of him becoming independent is about right. You could add a little bit of chamomile tea to his drinking water to help with the stress.

 

[Doves Witness]

If a flying set of razor blades was attacking people outside your home, you'd probably seek a safe hiding place, or a crowd of other people. In the bird's case, your home is the safest place he knows, and you are his flock. He'll calm down in time and the urge to go out and be with other doves will get stronger as he matures.

Normally the bird's father would teach them where to find food, water, and their flock. If there is a nearby flock of ferals, perhaps make a video recording from your door or driveway to their location and play the video for him on a loop. Or if you have a carrier, take the bird with you a couple of times.