I have/had a few that just start yakking all day......then they stop<shrugs>.......sometimes it's annoying, sometimes it's funny.
It's just what they do.
That's just going to prolong the problem and open them to getting out of the yard and into trouble.....might open the door(literally) to predators having access to them.
I'm with sourland, cease the free ranging totally and live thru(and don't give in) the ruckus until they acclimate to their...