DON'T FENCE ME IN

I once got a bunch of Mallard ducks for the kids to experience.  Their wings were clipped so they couldn't fly, but as their feathers grew back, they started to fly.  They would go straight up about two hundred feet, and then right back down into the fence.  That lasted for a while, then they flew all over, but always got back in by night fall.
These are Canadian Cacklers.  Smaller than Honkers.  They are getting ready to go to Alaska.  Extra.