Relatively recently i picked up 3 ducks. The ducks refuse to sleep in the chicken coop and instead sleep in their pool. Recently 3 of my hens took to sleeping next to the pool with the ducks. This was fine because the run is secure but now winter is approaching. Will the chickens return to the coop when the temperature drops or do i need to start locking them in at night? And should the ducks be put in the coop also? Thanks in advance for any help.