Mine do that from time to time. The roosters do too. I lost a whole flock because of it!
I can herd the ducks in most nights. If it’s happening night after night, I wait until they go in to eat. Then I shut them in for several days to refresh their memory of where they belong.
I can herd the ducks in most nights. If it’s happening night after night, I wait until they go in to eat. Then I shut them in for several days to refresh their memory of where they belong.