My neighbor had a huge bunch of wild sunflowers in her yard that had about bloomed theirselves out. She asked my son to take them down with his tractor as it was such a big job to do by hand. So down came the sunflowers. It was even a job for the tractor. But it did displace one little cottontail rabbit. I am sure it was able to find a new home out in the desert under a sagebush.