So, last night, my free range flock went in their house - except one leghorn. I took the broom and the flashlight and got that one down out of the tree. I thought it was just a fluke and that chicken was having an off day. So, tonight, I look out and see a white blob in the tree by the driveway. It's a small tree; obviously, not the brightest birds being only 5 feet off the ground. I go out to get the rouge bird and find two leghorns. Everyone else, even the guineas for goodness sakes, went home, but the whitest birds around had to roost in the smallest tree in the yard. Why are they doing this? Is there something they may not be getting in their coop? Is there a way I can break this habit? Should I confine everyone for the next few days to retrain them?