They are built here where I live in Mobile. I don't think that the "duck boat" is much different than the other hulls. All the Stauters that I have seen used as duck boats are just their 14-16' boats painted in green. They are a skiff style hull with a small amount of V.
They are incredibly well built boats and are very popular down here. Handle great, very little draft & very sea worthy. There is one in the paper today for 14' Stauter, no trailer or motor, for $1,000.00 & a 17' one with trailer & motor for $7,500.00. I'd be surprised if they arent sold within a day or two.