Hello everyone. I had a 3-4 month old female pekin duck. She died out of the blue overnight and I am so upset. There weren't any signs that an animal got to her. It has been very hot here this week. And yes they've had plenty of water. I'm not sure what happened. She was put in ice cold water by her previous owners at 3 weeks old which almost killed her and I believed caused some neurological issues. anyways none of the other 14 chickens or duck seems sick. What should I watch out for? And should I get another duck for the female Ruen that I have? She's all alone besides the chickens. Any advice is appreciated. Thank you!