I have 5 Barred Rocks and Partridge Rocks that are 7-8 weeks old. Every morning I open their access to their enclosed run, and they have access all day. What I've been noticing is that they spend the majority of their day in the coop. They come out and eat grass and scratch around for an hour or so, then back in the coop for a couple hours, back out for a little bit, and so on until I shut close the door to the run at dusk. They do get out to free range in the yard, and they love that, but afterwards go in and sleep for hours (which I guess I'm not surprised about). The weather has been highs mid to high 60's, lows in the 40's. But the last few days have been really warm (75+). They still have a heat lamp in the coop because there are 2 younger chicks as well. Is this normal or are my chicks just lazy? I expected them to be out most of the day, but maybe I'm just forgetting that they are still babies.