The easiest way to make sure there's enough food to go around is by planting vegetation that produces berries, nuts or seeds. Once established, native plants require less water and fertilizer, making them watershed-friendly landscaping choices as they contribute less pollution to rivers and streams. Bird feeders, of course, see the most activity in winter when natural foods are scarce. Place feeders where they will be protected from the wind and are close to the house for easy viewing. Remember to keep feeders clean to protect birds from the spread of disease caused by moldy seed or seed contaminated droppings.
Feeders are also a source of food for squirrels and field mice.