Rough-legged hawk
Buteo lagopus

Size: 21 inches
Overall Color: brown and white
Occurrence: widespread
Diet: small mammals
Nest: platform on ground, not in Montana
Field Identification: hawk bill, feather covered legs, banded tail
Season: winter

Kingdom: Animalia (Animals)
Phylum: Chordata (hollow nerve cord)
Subphylum: Vertebrata (backbone)
Class: Aves (Birds)
Order: Falconiformes
Family: 23 Accipitridae (hawks,kites,eagles,osprey)
Genus: Buteo
Species: lagopus