Since I bought straight run ducks, I have no idea who it what. These kids are five-ish weeks old and are mostly feathered out. 2 Pekin 2 Campbells 1 What-cha-ma-call-it About how old are they when they start to "quack" or for drakes to have the tail curl? Not that it matters really, I love love love these kids anyhow. Here I thought chickens were fun. I'm in love with my duckie-doos. Thanks guys!