Sleeping in the coop and now back to roosting in the run?

[chickgarden]

I have 6 chicks, all about 21/2 to 3 months old. They moved out to their coop and enclosed run about a month ago. It took them a couple of weeks, but they finally figured out to go into the coop to sleep at night. Now after about 2 weeks a few of them have started back roosting on the roost in the run again. Is this usual, or should I start putting them back in the coop again?
Thanks!

 

[devora]

Ha, they are keepin' ya on yer toes.

Yeah, you're going to need to put them to bed until they get back into the routine they were in before and forgot. What?

Uh, back into coop.