Hi, Im pretty new to chicken myself, and I kinda freaked out alittle when I saw my babies doing this too, but they are most likely just dust bathing and it feels good to them! I thought that one of my girls was having seisures she was so intense about it! LOL They get all comfy cosy and go to sleep, they sound perfectly normal too me! Have fun with with your chicks if yours are like mine ( and me knowing vertually nothing about the behaviors) will do alot of things that will freak you out, just do like me and run to the computer and byc and ask alot of questions!LOL I bet I got 10 questions posted of every week Ive owned these babies, Im surprised that /BYC hasn't banned me for being a nuicence! LOL Take care Sandy