Trees can be a rare sight on the High Plains. But take a trip across the region, and one thing will become very clear: the Eastern Red Cedar has been a success story. Deemed useful as shelter belts, the government once distributed saplings to residents to encourage planting these trees. But now, some might say they border on invasive. And since songbirds also help spread the seeds, it's easy to see how this population has exploded across central Oklahoma and Kansas. (But thankfully, it's nothing a good controlled burn can't remedy.)