Winnowing was done by women, who tossed the grain into the air with small wooden boards, the chaff being blown away by the winds.
The word Vanellus is from vannus, the fan used for winnowing corn, and refers to the audible beating of the bird's wings.
Winnowing is performed by throwing up the grain on windy days.
The methods of threshing and winnowing were the same as those in use in ancient Egypt.
Scare off the birds, harrow up the weeds, cut down all that shades the crop. Ploughs, waggons, threshing-sledges, harrows, baskets, hurdles, winnowing-fans are the farmer's implements.