I bought two muscovy hens. One is blue pied and one is silver. I asked the seller if they were pure muscovy and he said yes. However, I went outside yesterday and the guinea was chasing them (mean guinea for another post- I would re-home him if I could catch him). Anyhow, they quacked!! They don't quack other times, but I thought they never quacked. Does this mean they are mules?
(It's the two on the left in this picture.)
Any thoughts?


(It's the two on the left in this picture.)
Any thoughts?