The Sandhill cranes sometimes were quite noisy. I do not know what this was all about. It ended after just a few seconds and did not appear to disturb the others. Adults have the red heads, the juveniles, not. (And in the case of WOB, he nolonger has a red thatch,)
On another occasion an adult appeared to be auditioning for crane equivalent of Swan Lake:
Adult and juvenile.
A wonderful experience - W O B !