A bird cage (sometimes birdcage) is a cage to hold a bird. Bird cages are used in the home to contain a pet bird, such as a parakeet or a canary. Bird cages used in the home are made of metal wire. A bird cage usually has seed and water dishes, a cuttle bone, and toys such as little bells and mirrors. There are perches for the bird to sit on. A cage may be hung from a ceiling or a floor stand. The floor of the cage is usually lined with some sort of paper to absorb the bird's droppings, water spills, etc.