Great blue herons' size (3.2 to 4.5 feet) and wide wingspan (5.5 to 6.6 feet) make them a joy to see in flight. They can cruise at some 20 to 30 miles an hour. Though great blue herons hunt alone ...

A military reconnaissance drone with a 26-meter wingspan has completed its first long-distance flight in Europe’s busy airspace. The three-hour, 10-minute flight was designed to test how uncrewed ...

Immature grey herons have greyer plumage and a duller beak. In flight, grey herons have bowed wings and slow wingbeats — and they fly with their neck tucked in and their legs trailing beyond ...