. . "Rough-legged Hawk" . . "Buteo" . . "Animalia" . "Buteo lagopus (Pontoppidan 1763)" . . "Chordata" . . "Aves" . . . "Falconiformes" . . "Accipitridae" . . . . "(Pontoppidan 1763)" . . . "Buteo lagopus" . . . . . . .