Originally, we all had brown eyes. But about years ago, someone who lived near the Black Sea developed a genetic mutation that turned brown eyes blue. While the reason blue eyes have persisted remains a bit of a mystery, one theory is that they act
the Barred Owl's "who-cooks-for-you" call. I hear this quite often here in Charlotte, NC. They are beautiful birds, easier to hear than see, though they can be aggressive for those trying to walk on the trail during nesting season.