Adult length: 24 – 30 in (61 – 76 cm); adult weight: 2 – 3.5 lbs. (907 – 1588 g); coloration & appearance: a pale head and neck, chestnut flanks and mantle and blackish wings with a white speculum. The legs are red and the bill is black and pinkish. The sexes are identical in plumage, though the males are larger; juveniles are duller than adults.