The Galapagos Hawk (Buteo galapagoensis) is a large hawk endemic to the Galapagos Islands. Similar in size to the Red-tailed Hawk (Buteo jamaicensis) and the Swainson's Hawk (Buteo swainsoni) of North America, the Galapagos Hawk is about 55 cm from beak to tail with a wingspan of 120 cm. The adult Hawk has various colouring within the species. The adult Galapagos Hawk is generally a sooty brownish black colour; the crown being slightly blacker than the back. Its feathers of the mantle are partially edged with paler brown, grey, or buff, with their white bases showing to some extent. Their tail coverts are also barred with white.The tail itself is silvery grey above, with about ten narrow black bars; below it is quite pale. The wing feathers are paler on inner webs, barred with white. Reference: Wikipedia