I have about seven or eight chickens who insist on sleeping in the rafters of the coop rather than on the roosts. I went in one night to check on them and discovered nearly half our flock was on the rafters, perched on top of the coop door, and on a variety of other perches that weren't intended for chicken butts... Meanwhile the roosts were nearly empty, with a handful of lonely chickens squeezed onto one tiny spot. XD