Harmony Sunflower Seed Mix is a great way to encourage a wide range of wild birds to visit your backyard.As part of a varied feeding regime sunflower seed is a healthy supplement to a wild birds natural diet and a great way to get your backyard alive with colour! Using Harmony ...Harmony Sunflower Seed Mix is a great way to encourage a wide range of wild birds to visit your backyard.As part of a varied feeding regime sunflower seed is a healthy supplement to a wild birds natural diet and a great way to get your backyard alive with colour! Using Harmony Sunflower Seed Mix is the first step in making your backyard a bird-friendly haven. Go to our Backyard Habitat section for some other tips on things you can do to brighten up your backyard with birds all year round.