I made a small pen in the backyard so the chicks could spend some time on what little grass we have right now. They got to do things they can't do in the brooder: scratch in the dirt, peck at grass and bugs, take dust baths - they all piled onto one spot that apparently had the softest dirt. It was in the 80s today but I kept the brooder plate plugged in with them just in case they wanted a little private retreat now and then.
They were there for about four hours. One of us was with them all the time. I kept an eye on the sky but didn't see any hawks around. The chicks seemed thoroughly contented. I swear one was smugly saying to the others, "I told you guys there was more out here than that big box we live in."
Our dogs continue to be disinterested. The chicks are never where the dogs can get at them, but the dogs can smell and see them. They look at the chicks for just a few moments: "Huh. Those peepy things are weird." Then they go off and do their own thing. The chicks don't seem to notice the dogs at all.