Mine are fastened in at night, they wait for their supper which I feed inside their hut, I believe some people say you shouldn't feed them inside but if it gets them in and safe its worth it. Fox had one of mine down field, luckily OH saw it and ran down, she could hardly lift her head for over a week but she survived. Farmer over valley had a huge pond, but I found remains of one of his geese in our field. (smaller than an embden tho)