lol. i think if you have a heat lamp in the coop, to take the edge off, you could move them, they look old enough to me. When I moved mine out last winter, i did put their heat lamp in with them for the rest of the winter. I did also open the coop door so they could see out and start getting used to the idea.
I did not want to kick them out during this really cold snap. 5 degrees tomorrow! But I am putting them out Sat. morning. That way I am home to keep an eye on them and make sure they are not shivering. 23 of them are ready to be outside.