Duckling with mismatched legs

[CaliFarmsAR]

It's possible, though it wouldn't be my first guess. He's a lot smaller than the one that looks like our big ducks, so i was figuring at least one of his parents was an Aztec. And his markings don't look like the pictures we have of them as ducklings, so probably one Aztec and one big duck for parents.

Was the Aztec the hen? If it was the drake, I wouldn’t think he’d mate with a big duck, I have Call ducks and the drakes can’t mate my big hens

 

[Quatie]

If he was assisted, it wasn't by humans. He was hatched in a nest. One of two that hatched and were found trampled against a wall. I assumed his problems were due to the trampling, but I called times up on the remaining eggs and the one that I looked inside had what looked like a prematurely internally pipped duckling - with legs that didn't look quite the same size.
Is there something in the incubation process that could do this? I don't think that egg and the one gimpy duckling hatched from were from the same duck.

Here's a picture of him. You can see how the wing points forward like an arm. Totally adorable how human-like it makes him seem when he leans on his water dish with his arm over the edge - but not terribly functional. View attachment 3169782.

I take back what I said about the leg being totally limp, though. When I was trying to get a picture, he totally used the top of his foot to launch himself out of view.

It is such a cute duckling.

I was thinking maybe the duckling no longer had function of it's leg, but that doesn't sound like the case. If it got trampled it is very possible something is broken or dislocated. Both things would need to be treat by a vet. I know people care for disabled ducks.