4 month old pair and 3 month old pair, they are HUGE! When I was younger, didn't care for the exhibition type Rouen, thought them to be unattractive, but in my latter years have learned to enjoy them. The keel really does almost drag on the ground. They really don't walk very well, but they do alright, letting them out to free range occasionally and restricting their feed so it's not available 24/7 helps. Started them on 20% chick starter and then switched to Artois feed layer pellets 16%. Artois adds niacin to their layer pellets, and I suspect with the huge asian market for duck eggs in California that they add extra. Looking forward to when the males get their Mallard colored feathers, will add some photos when they do.