I am pretty sure by the way mine are growing that I have a boy and a girl. I just got them Saturday and already the one is growing way faster than the other and in the last three sets of two ducklings I bought I ended up with a boy and girl and the same thing happened. I hope you don't have drakes. That is the only bad thing about getting them unsexed. It is so cold here right now I could not even begin to think of letting mine outside for anything. Where are you located? Florida? I am in Ohio and our May is more like March right now.