SUB-FAMILY ACCIPITRINÆ
Long-legged Hawks
Bill short, strong, curved from the base; edge of the upper mandible with a prominent festoon beyond the middle; nostrils oval; wings rounded, short, reaching only to the middle of the tail; middle toe much the longest.
67. Accípiter (Sparrow-hawk). Tarsi long and slender; fourth and fifth primaries equal in length and the longest. Ridge of bill measured from margin of cere is less than half middle toe (without claw).
SUB-FAMILY MILVINÆ
Bill of moderate length, slightly curved from the base, upper mandible with a slight festoon; nostrils oval, oblique; wings long; tail long and forked.
68. Milvus (Kites). Tarsi feathered a little below the knee; fourth primary the longest.