A common hawk of wet deciduous woodlands ... Polytypic. Length 15–19"; wingspan 37–42". A medium-size buteo with rounded wing tips that do not reach the tip of the tail.

Length 14–20"; wingspan 29–37 ... Migration: in­creasing numbers at eastern hawk-watches probably due to better identification skills. Winter: juveniles winter farther north than adults ...

With $10 billion in development costs, the Global Hawk UAV has been an expensive proposition for the US Air Force over the course of its 15-year life. The huge UAV – its wingspan is nearly 30 ...