Ok, I have 4 chickens and I usually wake up around 7 and take them from the coop to the run. Usually the later it is, they'll be waiting for me at the coop door. Today is Sunday and my DW went out to get them at 8 and they didn't want to come down from the roost. It's almost 9 and they're still sitting up there. The only change is that I finished up their nest boxes and put some golf balls in there and I cleaned out the pine shavings for the first time yesterday. Any ideas?