We're having some rat problems -- nothing big, just an occasional one now and again -- and they're eating our main layer's eggs. We were hoping to let her lay her own clutch (she's pretty broody), but we keep finding the eggs dragged out of the crate, pushed in, and completely empty. Any ideas on ways to keep out the rats? I was thinking maybe getting a couple of geese, since their territorial attitude might get them chase away the rats, but we live in a residential area, so I'm afraid of the noise from them. Any other suggestions? We have dogs, but none that we could really keep out there with the ducks in the pen. We're also having some problems with the little neighborhood sparrows eating the duck food, but that's a whole other problem ... Thanks!