We can barely get our chickens to go outside (they don't like the snow!) so count your blessings, I guess! They do like to stand in the coop doorway however and just look out, but I guess breed has a big part to play - we're raising Buff Orpington's right now and they're content to be cooped up.
We have two younger hens that we're still keeping in the house until they can deal with the freezing weather. They are a lot different! We can't keep them in their pen. They're little escape artists -- we have them locked in their pen with bird block tacked all around and they manage to escape all the time. We have them locked up fairly well too, our cats couldn't escape from their pen - but the chickens manage.
Funniest thing about it is they escape and either sit in front of the christmas tree, or climb up on the sofa and roost there. When I try to get them back in their cage they run all over like it's a big game, and when I catch one of them the other gets all huffy and squacks and squacks and then puts herself in the pen. She absolutely wont let me do it. Then once she's in she chews me out in chicken language until I appologize. She gets REALLY loud too! I'll have to record it some time, it's like chicken swearing. And the only thing she's upset about is that they got caught. They usually make their great escape around 8 or 9 in the evening, so I figure they dont see their box (it's big with a couple roosts in it) as an adequate roost.
Peculiar animlas, who would have though they had so much personality!