One of my female ring teal was dead this am. No sign of trauma. She seemed a little thin. I've taken her for necropsy, but vet doesn't feel we'll find anything. The other ring female doesn't look well, and my cinnamon drake is acting strange, trying to hop on top of the water. I have six mandarins, and they all are acting fine. If anyone has general suggestions of any kind, I would be happy to hear from you. General recomendations would be most helpful.