I got some mystery ducklings at a farm store and as they've grown one of the crested ducklings is seeming rather slender and has an odd crook in its neck. When it straightens its neck out it still has kind of a bend there. I cant tell if its just an awkward runner duckling or if it has an actual neck deformity. It isnt crooked to the sides, just the front where it bends. It eats, drinks, and behaves regular.I know time will tell but wanted to see if anyone had a guess.