In Mount Juliet, Tennessee, the trees may belong to the birds but the ground is where a woman named Pat makes birds sit up and take notice.

SLIDESHOW: Spring's Early Birds

Growing up, Pat's determination to whistle bird calls tried her parents' patience.

And then one day, her practice proved perfect.

Now she's so good she's taken her whistling show on the road to churches, senior groups and schools.

When it comes to bird calls, nobody does it better -- as long as you're not counting the birds.

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