I am currently in a fight with my older hens on this issue. I have a rather large divided coop, and they had their roost in the same area as the nest boxes.
Since I have added 80 new 9 week olds to the flock, the area was no longer big enough for roosts for everybody. I moved the roosts to another section of the building this week. I have to close the door to the nest area and physically move every last hen out to the roosts at night. I am hoping that after a week or so, they will have new habits. It is such a pain every night to take them all to the roosting area and then get to the henhouse before dawn to open up the nesting area for those early layers!
Train yours from day one! As was said, a sheet over the nests at night seems to work wonders. It takes about a week, then you may still have stubborn ones that you will have to physically move to the roost for a while.
Since I have added 80 new 9 week olds to the flock, the area was no longer big enough for roosts for everybody. I moved the roosts to another section of the building this week. I have to close the door to the nest area and physically move every last hen out to the roosts at night. I am hoping that after a week or so, they will have new habits. It is such a pain every night to take them all to the roosting area and then get to the henhouse before dawn to open up the nesting area for those early layers!
Train yours from day one! As was said, a sheet over the nests at night seems to work wonders. It takes about a week, then you may still have stubborn ones that you will have to physically move to the roost for a while.