It's true, CB, I often trip on holes the chickens have dug out when I'm doing my morning chores with the sheep. We have about 12 "free range" chickens which we use mostly for fly control. The chickens dig out the fly larvae(one of their favorite foods) and cut down the summertime fly population by at least half.
If you want another chuckle, just sit and watch a group of chickens moving around a homestead... they get my vote for the most humorous farm animal.