Hi: I spent all weekend cleaning out and winterizing my duck house... it looked great, all clean and warm and fluffy new bedding and hay...It was pouring rain when I got home last night, so I just did a quick check on the ducks. Tonight when I got home from work I found this... Something has placed a bunch of black walnuts in the ducks house... I'm wondering if anyone has had this experience in the past, I'm guessing either chipmunk, rat or squirrel???