In the mid-2000s, Northrop Grumman produced their first Global Hawk variant, the Block 20 (RQ-4B). This Global Hawk variant ...

To build their drone, the researchers turned to the anatomy of the hawk. Using light materials, they created raptor-like bones and joints to make the wings and tail and fashioned them onto an ...

Wingbeats are stiff; it soars on flat wings. When flying, a juvenile red-shouldered hawk shows light crescents at base of primaries and a longer tail. Perched, it has a brown tail with dark bands ...

glides with wings cupped, giving a “hunched” appearance. Wingbeats are quick and shallow, interspersed with quick glides. Broad-winged hawk adult has rufous on breast, but no barring on ...