Laying status of ducks, skeletal clues apply?

[Cyprus]

Of course more cases would be good...do you have ducks?
Hopefully more will chime in.
But I'm pretty convinced despite that a muscovy is not a mallard, nor is it a chicken.
It makes sense that any egg layer's anatomy works about the same.

Or...any female animal's anatomy for that matter. (That lays hard shelled eggs or has live births of decent sized offspring -not marsupials). Humans and other primates get wider hips, so do cattle and other ruminants.

 

[aart]

Or...any female animal's anatomy for that matter. (That lays hard shelled eggs or has live births of decent sized offspring -not marsupials). Humans and other primates get wider hips, so do cattle and other ruminants.

Yes, mammals pelvises soften close to delivery,
any woman who has given birth knows that loosened waddle,
but we're talking birds here and egg laying status.

 

[Cyprus]

Yes, mammals pelvises soften close to delivery,
any woman who has given birth knows that loosened waddle,
but we're talking birds here and egg laying status.

True, therefore more cases are needed before this can be confirmed or denied.