A silo (from the Greek siros, "pit for holding grain") is a structure for storing bulk materials. Silos are used in agriculture to store grain or fermented feed known as silage. Silos are more commonly used for bulk storage of grain, coal, cement, carbon black, woodchips, food products and sawdust. Three types of silos are in widespread use today: tower silos, bunker silos, and bag silos.

"She was feeding animal life before she was born, as child, as a young woman working on the farm of the German, after she was married, when she grew old, and when she died.  She fed animal life in cows, in chickens, in pigs, in horses, in dogs, in men ... a thing so complete has it's own beauty."

Sherwood Anderson

Death In The Woods, 1933