The cries have been going on for several days. Kee-ahh, kee-ahh, kee-ahh, as the Cornell Lab of Ornithology describes the sound: https://shltr.net/redblues. We figure it’s junior being forced out of the nest and not liking it. “Get a job, get your own place…”
Last evening, the young one was in one tree, another hawk in a distant tree, and they were calling back and forth to each other. Below, the young one takes off and flies over to the other one. After a short period, one flew off.