How old are your Guineas? My adults are almost a year old now. They were ALL going in the coop faithfully and NOW (about a month ago), they ALL want to roost on the tractor shed (roof apex) and others high up in the big oak trees over the barns. NONE go in the coop now.There is no herding or controlling them, and I have given up trying. Guineas do what they want . . .
I have young Guineas I've hatched this year that I still have penned and am debating turning them out (as there may be no going back -- I don't know I have the energy to chase them down --which I have done as you have in the past). The best way is have a chicken hen hatch and raise and she controls them until they are older.
A Game hen hatched twenty keets for me this season, and I loaned her and 15 of her keets I was giving the keets to a friend who is a mile away & lives in a great Guinea place-- (i.e. no road to play in but a clearing in a the smack middle of a 40+ acre patch of thick woods). My friend let them escape the first day & that was two weeks ago. The Game hen has kept them on the premises and has kept 14 of 15 safe-- one went missing the first day (probably a snake or something) -- but when I saw them a few days ago at roosting time, the Game hen was high in a heavily branched tree (i.e. well hidden and the keets were on the same branch about equally on both sides of them -- it was really something to see them all lined up like that). Guineas are amazing birds.