Well it can be bad for the female since 3 drakes will over mate her, but it just means More Ducks in your future so isn't all bad. either that or rehome 2 of the drakes but you'd still be better off with 1 more girl with 1 drake 2 to 1 is much better. Sure is pretty,.
If you get some females out of your ducklings you'll still be short because your drakes will fight over the females, ask my how I know I have 4 drakes and I have to keep 2 of them separated from the other 2 during most of the year. They fight alot. My drakes have 2 girls apiece except for my old one he has 3. But during mating season my one drake had 4 ducks and his son got left out. and had to grab a duck when Dad wasn't looking. Makes it hard on the girls but mine made it through okay, If only I had someone who would love to have a drake I would have only 3 instead of 4. But Scovy's can be fine with other breeds of ducks.
Aww mom was trying to help, sweet of her now maybe she'll take the 2 drakes off your hands, they will be fine together without any females to fight over.
I know someone had the female duck fixed because she was having serious egg laying problems but not sure if you'd find a vet to neuter a drake plus it would probably be cost prohibited. Might try calling an Avian Vet.
