According to the National Audubon Society, bird feeding can benefit birds and also provide great bird watching from the backyard. You can choose to feed birds just in winter when natural food supplies are scarce. But keep in mind a larger variety of species will visit bird feeders during the spring and fall migrations. And during summer while nesting, birds will appreciate a steady food source from a bird feeder.
To keep birds coming back to the feeders in any season provide them with the following three essential elements:
Variety of quality seed.
Fresh water for drinking and bathing.
Ample cover, preferably provided by native plants which also provide potential nesting sites and a source of natural food.

