This Chicken Tower system was invented by April Sampson-Kelly in 1996. She has reillustrated it this week for our course notes. The Chickens have garden weeds for picking at, and nesting in, their manure and scratchings feed the Worms in the bottom drawer of the Tower. Rainwater is also collected, fed to the chickens and worms and recaptured in a tank for the garden. Another smaller worm farm tower was invented by one our graduates.