i found this in with my chicken eggs this morning and it looks and feels like a duck egg to me but this nest box is like 4 feet in the air so that narrowed it down to about six of my duck hens but then i thought and five of those hens lay green eggs (one is pure mallard the other are mallard buff crosses) so it has to be my sisters muscovy but i've never saw her in there before so maybe it's her or my little EE chicken hen feels alot better with that huge egg out of her system what do you think it might be chicken or duck or should i found out myself and hatch it