Red-shouldered Hawks are our most common hawks, seen all year round in just about any park I go to. It's more uncommon not to see one than to see one. I've seen them with snakes, frogs, insects, voles, small ducks, squirrels, Blue Jay chicks and even a Pileated Woodpecker fledgling. They're pretty fantastic bird to watch. The easiest way to recognize them, other than the red patches on their shoulders, is white "window pain" patch near the end of their wings visible in flight.