I got a Rouen duck about 3 wks. ago. The guy we got it from said it is a female but was molting so not laying eggs. Well, I think it is a drake. I am new to ducks so bear with me. It has not laid one egg, could it be still molting? How long does a molt typically last? My chickens have not molted yet, so I don't know what to expect. I went out and it's wing feathers look scraggly and there was a lot in the pool. Itlso acts like it has gape. Can ducks get gape worm. It itches its head alot, but I've seen no mites. Can I use Ivermecton Pour On for the duck like I do my chickens? Could he/she be pulling them out. It eats flock raiser, no oyster shell as I don't know if it's a drake. The man we got them from has had ducks for 15 yrs. on a pond where he says wild mallards have come and gone as well. So I don't know what it could have been exposed too. THe duck seems to have a low quack but also seems to hiss. So I am really confused.Some of my sentences got messed up, not sure. I tried to write it acts like it has gape too.