More than 500 double-crested cormorants were shot on an island in Lake Michigan recently. It was the latest in a string of such events. As the cormorant population continues to grow, its voracious appetite for game fish has created problems throughout the Great Lakes. That’s prompted biologists to look for ways to reduce the bird’s population. In New York, those efforts have led to the destruction of thousands of cormorant eggs. There’s evidence it’s working. But as the Great Lakes Radio Consortium’s Karen Kelly reports, some controversy remains: