hawk owl(n = noun.animal) surnia ulula - grey-and-white diurnal hawk-like owl of northern parts of the northern hemisphere;
is a kind of bird of minerva, bird of night, hooter, owl
is a member of genus surnia, surnia

ball hawk, barn owl, barred owl, black hawk, chicken hawk, cooper's hawk, fish hawk, great gray owl, great grey owl, great horned owl, hawk, hawk eyed, hawk moth, hawk nose, hen hawk, hoot owl, horned owl, laughing owl, little owl, long-eared owl, marsh hawk, mosquito hawk, night owl, old world scops owl, oriental scops owl, owl, pigeon hawk, red-shouldered hawk, red-tailed hawk, rough-legged hawk, scops owl, screech owl, sea hawk, sea owl, skeeter hawk, sparrow hawk, spotted owl, swallow-tailed hawk, tawny owl, vanner hawk, war hawk