Hey I haven't been able to find anything on this.. but a breeder sold me four couple day old silkies, and the next day my one silkie was laying on its back dead. The same day another one was laying on its back kicking its legs around, but popped back up when we put her right side up. Today, that same chick slowly got weaker and we kept finding her on her back. She finally died tonight, I dont get it.. they were eating, and drinking. Acting like chicks. What is this? Another one of them keeps laying on its back now.... help!