I can't believe I wasn't more careful. I mistakenly thought all the ducklings were female. So, I just bought 3. Now, I checked with the feed store where I bought them and indeed, no, they were mixed. I was planning on having 3 females and one is so much bigger i think it is a male.
How is life going to be different with 1 male and 2 females?
Thanks for any advice and info.