I live on a brook & a 6-7 wk old yellow Mallard baby ( NOT a domestic, all it’s siblings/parents are dark, sometimes mallards have yellow duckling from long ago hybridization). Yesterday morn it was fine, by afternoon it was limping, dragging foot, hopping on 1 foot. It’s foot is curled up but no blood (I’ve not seen under the foot for an injury). Leg doesn’t look deformed. Eating/drinking normal. Keeping up with it’s family in water, harder on land but it’s trying. Wildlife Centers won’t take it b/c it’s a hybrid. Thinking to bring it my vet tomorrow but does anyone know if this is a fixable injury? What is the injury? If this baby can survive? Anything I can do? Worried for this sweetheart. Please help.