It's amazing how smart animals can be. I lost my favorite hen monday night. I left her outside in her cage but I put her in a medium sized bird's cage where I usually put her at nights. I discovered her dead and seems like the animal got her through the bottom of the cage and drag her foot under and ate her whole leg breast. Sorry it's hard to type, it's unbelievable how the animal killed her. Okay the bottom of the medium sized bird's cage is 1 inch all around. It took some pretty good force to stretch it out at least 2 inches.