Many of us like to buy suet balls or birdseed encapsulated in mesh bags, which helps keep the birdseed together when you hang it outside. While our feathered friends can get a healthy meal or snack from these, there is also a chance they can get entangled in the mesh. When the suet or bird food gets low, it creates air pockets around the mesh bag. This can lead to birds digging deeper into the bag, which can lead to their legs and beaks getting trapped and entangled. Stick with traditional methods that involve loose feed instead.