Bird feeding is typically thought of as an activity of bird enthusiasts. People who feed wild birds often attempt to attract birds to suburban and domestic locations. This requires setting up a feeding station and supplying bird food. The food might include seeds, peanuts, bought food mixes, fat, kitchen scraps and suet. Additionally, a bird bath and grit (sand), that birds store in their crops to help grind food as an aid to digestion, can be provided. Feeding bread to waterfowl at parks, lakes and rivers is also a popular activity.