A few years ago, the weeds and rushes were growing out of control on one of my pastures, so I mowed it with the tractor. Chickens range widely over short grass, and mowing the grass helps keep it green. (Chickens can’t digest tough, brown, woody plants, but they can deal with succulent green plants.)
As I mowed, crows appeared. Mowing uncovers field mice and other rodents that live in the grass, exposing them to predators. The mower also kills some creatures outright.
“It’s a good thing I’m not a vegetarian,” I though. “If I’m killing this many animals just by mowing, imagine what would happen if I plowed this field every year to plant corn and soybeans!”