Most people who tend plants in the yard also set out bird food for the wild birds. The two passions almost go hand-in-hand. They can overlap even more if you grow your own bird food, says Marie Iannotti.
No, I'm not talking about growing exactly the same kind of seed that you would find in the typical bag of bird food (although many do grow sunflowers to beautify their yards, then harvest the seeds for bird food). But as About.com's Gardening Guide discusses in this article, there are many flowers you can grow that attract wild birds with their seeds, including:
There are also many trees and shrubs that attract birds.
Grow your own bird food: Plants That Attract Birds