Mourning dove - I LOVE the sounds they make! It is the most soft, beautiful sound I have ever heard from a bird! - Just so you know..Elvis's ancestral grandmother was named "Morning Dove".. http://www.flickr.com/photos/hlmgreen/5606097339/
I generally have a male and female that stay close to my house all year feeding on the ground on the seeds that the smaller birds have dropped. I've had up to a dozen in a flock sporadically come for feedings though.