I got a 20 month old BR that all of a sudden decided to start sleeping in the nest box she lays in. Out of the past 6 nights 3 times I had to pull her out and put her on the roost. For the life of me,cant figure what started this behavior. Dont think shes broody,she is laying, eating, drinking and appears to be normal physically and went through molt. Not sure if she just wants alone time but there is more than enough space on the roost for everyone. Has anyone seen this type of behavior?