Thanks for all of the advice everyone. He finally passed away. I'm so grateful for everything I learned in this process and that he was so loved on his last day.
Now my boys are asking for another drake. So I'm thinking can I integrate a lone baby duckling (raise him to 8 weeks first) with the two girls? I know they are going to want a male around and we were used to seeing 3.
I'm thinking I have all the equipment...
Sorry he passed

A 2-1 ratio might not be ideal. I’d get a sexed girl if you wanna keep your number at 3, otherwise you’d want to bump up your number of girls with a new drake