So my chicks are about 6 weeks old, maybe 5..i dont remember. Anyway, they have a roos in their coop, but they insist on sitting huddled in the corner, usually on top of each other. Most of them can fly up to the roost, it may be a tad too high, but they dont go up on their own. If i put 4 of them up there, the other 2 will usually fly up, but they dont go up on their own. If i put them up at night, then they stay there all night, so i think they like it.