wow, tight area...maybe they dont have the room for semi flight or to jump to get in a comfortable place. I had the same problem with mine wanting to roost...sleep big time in there nest boxes, I mean they would all crammed into one nest box on top...
this is when there babies...as you can see my problem was ONE..MY NEST BOXES ARE OPEN WHICH WAS A MAJOR PROBLEM...and TWO..THE ROOST WERE ALMOST EVEN WITH THE NEST BOXES...thus they all just at night all get into the nest boxes, this is nothing...here in the picture its only a few of them.
I had plently of room, but it was my frist coop and I didnt know...to solve the problem...in the daytime I placed chicken wire rolled up in the nest boxes at night time....so bascically I was covering them up....so they couldnt roost...in the daytime I would open them up And I boiled two hard boil eggs...I looked everywhere for golf balls or something couldnt find them...so I did boiled eggs...day time eggs in nest, night chicken wire to block it...now
well they still needed a place to roost and I guess those were too low for them...Im not sure, so I gathered branches of different sizes from the yard and anchored them to the coop and also tied to each other to make them sturdy...so they wouldnt swing much. NOW THEY ROOST ON THE NEW AREA AND LOVE IT!!!!
WHICH BY THE WAY IS OVER ALL THE TOP OF THE COOP....AND MY COOP IS MADE THAT ALL ACROSS THE TOP, ITS OPEN, WITH CHICKEN WIRE, SO THEY CAN ROOST AND SEE OUT AT NIGHT!!!! YOU ALSO SEE A ROOST LADDER TO THE FAR RIGHT...THEY USE THIS TO GET TO THE BRANCHES, THEY WONT SLEEP HERE THEY WANT TO SEE OUT!!!
LOOK AT THE FRONT OF THE COOP, ALL ALONG THE FRONT OF THE OUTSIDE...THAT IS WHERE THERE ROOST ARE: