Just received my ducklings today. One was dead on arrival but another Cayuga is very weak, though she did eat and drink a bit but only when she first arrived this afternoon. She has bloody poop or bloody butt. I don't see how she will live through the night. I just found her lying in the brooder box waterer with her beak submerged for a few seconds...almost like she fell asleep...and then she will jerk her hear straight up only to let her head slowly dip back down into the waterer. Over and over again. I removed her from the water and dried her off. My question is what could she possibly sick with? I cleaned the waterer and sanitized it but could this be contagious? Thank you!