The 1/4" hardware cloth is the best. Not only for keeping in baby duckies, but also against small predators.
My baby chickens are in a brooder pen with 1/4" ... however, I am guilty of not really fencing in the new newest muscovy mama & babies very well. They are in dog x-pen, placed in a a full 10x10 horse stall. The babies can fit through the x-pen, but don't venture far from mama. This is only a temp set-up anyways while we establish their new home & are introduced to our current trio.
They will be allowed to free range in a couple weeks.
My baby chickens are in a brooder pen with 1/4" ... however, I am guilty of not really fencing in the new newest muscovy mama & babies very well. They are in dog x-pen, placed in a a full 10x10 horse stall. The babies can fit through the x-pen, but don't venture far from mama. This is only a temp set-up anyways while we establish their new home & are introduced to our current trio.
They will be allowed to free range in a couple weeks.