MEQUON - As I climbed the stairs inside the 125-year-old silo, it was clear I wasn't alone. Occupants in the vertical structure heard my footfalls and sounded their alarms. The first I encountered was ...

Several years ago, I led a birding tour along the Missouri River. As the group and I stood on a high cliff overlooking that beautiful valley, we were entranced by the masterful flight control ...

CURTIS - On the approach into town, you spot them high in the sky, circling seemingly endlessly, lazily and effortlessly against the bright blue of the early summer evening. Round and round they go, ...

Why it's awesome: These scavenger birds have an unexpected way of keeping predators away — by projectile vomiting stomach ...