We are all very impressed with how much the Muscovies have grown over such a short period of time. Granted, they eat more than the chickens, but I imagine that will slow some as their growth needs also slow. We have picked the 2 drakes we intend to keep to maturity and cull the other 4 next month. In the end, we will cull to just one after we decide which one does the better job with the girls.