This morning we let the girls out (we have 6 hens) as we always do to run around and after an hour or two we noticed we had not seen our buff Orp (8 months old only) in a while so the kids went looking around for her and came back screaming that they thought she was dead---which upon inspection was true! She was laying on her side--looked sort of asleep but not moving at all...I inspected her and she was indead dead and no marks on her whatsoever. No blood, had not been sick that we know of, eating well, live in southern CA --perfect weather....I am at a loss!!!!! Help!!! Any ideas what could have happened....so scared it will happen again---want to find reasons!!!