“My baby duck at about week 3 started walking funny and sticks it neck out straight like a goose. Not like the other baby duck. It also constantly wants to hold its head under water when he plays. Walks funny with his neck all out front and not held up”. His gizzard as well appears to have disappeared. The other duck has a big gizzard but the one I am worried about started to look weird and as I said doesn't hold his head up high when he walks and when he sits down he wants to lay his head flat on teh ground?