I have a hen that's just hanging out in the nest box all day. She'll come down on her own to eat and drink and dust bathe several times a day but always goes back up into the nest box instead of hanging out in the run with the rest of the chickens. I'm wondering if this is normal since it's starting to get a little chilly and we've had 2 hens molt (the hen in question hasn't started molting yet). She started acting this way this week, before then she would be in the run all day with the other chickens.
Is this normal?
Is this normal?