so this spring i bought two straight run ducks both ended up being drakes a runner duck and a buff orpington. and then i made the mistake.... my friends up the way bought two runner ducks and one died so i brought it home and turned her loose (i didn't think to quarantine) she later went missing and i believe died of unknown causes. now my two drakes have the same splotchy spots on their breasts and the missing duck did it is very small spots but allot of them almost like dappling on a horses coat, and they shake their heads allot. is that just normal molting or should i be very worried? i am beginning to think maybe a trip to the vet is in order?