The last comment posted when I read the article should be a rude awakening to them.
"There is no such thing as "cruelty-free food," unless you eat only vegetables that have been harvested by hand. Reaping machines, etc., kill small mammals, rodents, and nesting birds that live in the fields. If you're eating grains or vegetables grown on a farm that uses any machinery at all, you're killing animals to eat. "
She left out the occasional small faun that gets tangled up in the haying equipment, not to mention the reptiles there for the voles, and many amphibians such as newts and frogs. There are few bloodless options short of growing your own food on a small scale without machines, and that would be way too much work and too expensive for most people. For one thing, it would leave little time to don the spandex and ride the bicycle up and down the road in front of the homestead here.
Perhaps these PETA folks should exit the city and take a trip to the country around harvest time to observe the flocks of vultures and crows following the combines.