I "borrowed" two runners for my daughter's birthday last summer. We soon ended up with 5 ducklings. Unfortunately, our duck vanished one night, no doubt carried away by some sort of predator. I gave away two of the babies, so then we had our original drake, plus 3 ducklings. Our drake became very aggressive toward the male duckling, and one night when it was time to lock them up, I could not find him (the duckling). I haven't seen him since. I have an alternate home for our drake. I really don't want to give him away, but he's such a jerk lately! He's no longer friendly to us, and is mating with his female offspring, even though they aren't mature yet (hatched 11/19 and haven't started laying yet). Is that harmful for the ducks? If I send him away, will they miss him? It seems like he does nothing but pester them, and I really feel like it would be a more peaceful situation if he wasn't there, but then I'm not a duck, so what do I know about how they're thinking. I could give the ducklings away, but our drake gets very lonely when he's by himself.
Here's a picture of them reluctantly wearing the "sweaters" I made them.