I bought four unsexed ducks last year from TSC. Not knowing breeds, we picked two ducklings I assumed were Pekin and two that I thought may be khaki Campbell or Rouen. I ended up with two female Buff and two male Rouen ducks. The sweetest ducks ever. This winter I turned their baby pool upside down so they wouldn’t jump in ice water. A couple weeks after seeing mating behaviors I found 11 eggs. No one was sitting on them so I brought them in and called TSC. I ended up with two ducklings that were incubated from a 7 egg Brinsea. The next week 11 more eggs! Then 3 went missing. Then my flock and all eggs were killed by a weasel. He had a tunnel system under the baby pool! Took one female and left the remaining three dead. I am heartbroken . Good news my ducklings are 3 weeks old and doing well. They have the Rouen head stripe but are not black and dark brown. More of a lighter brown. No idea of sex but thinking of adding some more while they are young.