I have a female (pretty sure) one year old who has not yet laid eggs that I know of. She does not have the curl on the tail and she quacks. We had a drake but had to re-home him as they would both gang up on my white hens and rip their feathers out until raw. I also have added 2 female Muscovey ducks to the flock. They are already laying in the nesting boxes. They are all in a large run and have a large pen with coop. If she has laid I would have seen them somewhere in there. Any ideas?