3 of my 4 hens started molting about a month ago. Ever since only 2-3 will sleep on the roost. We had a hawk scare almost a week ago and 1 of them was missing for a whole night. I have locked them in the run ever since the scare and now only 2 of them are on the roost. The others are sleeping in the nesting boxes which I don't really care for because they are pooping in them. Does anyone have any suggestions on what I can do to get them all back on the roost? I've had them for over a year and this problem didn't start until about a month ago.