The Haast's eagle is extinct now, and has been since, probably, around the year 1400, soon after the Maori first settled the South Island of New Zealand. (It has been reported as seen a few times since then, including once by "noted explorer" and generally reliable source Charles Edward Douglas, but, as you'll see, that's pretty unlikely.) The Haast's eagle was outrageously big and strong. Its wingspan was comparatively short, given its body size, at around nine feet long. I say "comparatively" because that's about as long as the longest wingspan of any extant raptor, including the golden eagle (which is huge) and the Steller's sea eagle (which is also huge).