My 2 serama chicks about 4 weeks old have been acting somewhat lethargic yesterday. They were in with button chicks who were and still are acting fine so I've just been keeping an eye on them. They have been eating and drinking normally but today were definitely not as active and shivering. I decided to put them back under heat and went to move them to the other brooder. When I set them down clear stuff slightly thicker than water ran out of one chick's beak. Now they are huddled under the lamp. I don't see any gunk on their eyes or beaks and they don't have anything stuck to the feathers around their rear ends but I don't yet know what their droppings are like. I'm leaving thursday evening and not coming back until sunday night so whether this is an emergency or not I need something now. Ideas?