I know, I know....old news, but for me, not so much! I was doing my dishes and looked out and saw an empty pen...wondered, "Did they?" And they did!!! So amazing to me. I wish I had looked up and saw them marching in. I put hay along the side of the ramp they keep falling off of when I herd them in, so I didn't get to test it out....really packed it in so they would have some cushion if they fell off. I am just so excited and so impressed with the little buggers!!!!