So my chickens have this wonderful new spacious coop and, until I get the enclosed run finished, they are allowed to free range every day for at least 3-4 hours. They seem to really like the new nest boxes and haven't missed a day of laying even through the move. The issue is that they are choosing to spend their nights in a corner of the coop in the sawdust underneath the new roosting platform. I have tried bribing them to come up the ladder to the roost with mealworms and one of them almost made it. After observing her attempt, I adjusted the ladder so that it ends right at the upper edge of the platform instead of slightly below so they do not have to jump onto the platform. Other than that, the only thing I can figure out is that maybe they would prefer a ramp to a ladder (is it too open and they don't want to see that they are walking in the air?). Or maybe they need a curtain to give them privacy at night?
Any suggestions on how to get them to use the roost? Here is a picture of the roosting area and ladder (there is a bucket by the ladder so they can step up to it if they do not feel like a short leap - these are brahmas after all) -

They sleep in this corner -

Any suggestions on how to get them to use the roost? Here is a picture of the roosting area and ladder (there is a bucket by the ladder so they can step up to it if they do not feel like a short leap - these are brahmas after all) -
They sleep in this corner -