You know how computer nerds may look a bit awkward at their desks, but they're masters of coding? Well, great blue herons are the computer nerds of the bird world: they look awkward in flight, but they're masters of fishing. These four-foot-tall birds are all legs, which they use to their advantage by wading into shallow pools and feeding on tadpoles and tiny fish. When fishing, great blue herons will wade with gentle, easy steps that don't disturbing the water; then, with lightning-quick reflexes, they pluck up their food. Because they rely on water for survival, the best places to see these magnificent birds is along rivers or in wetland areas. They usually nest in tall cottonwoods overlooking the water and return to the same nesting sites year after year.