I have a bird feeder in front of my house and I fill it up with this generic bird seed that has many different kinds of seeds. I’ve watched the birds come up there and eat but then they take the corn kernels and toss them out. A bunch of the corn has fallen on the ground and now I have corn growing!
Had one stalk pop up a couple years ago, right in the front yard. Let it grow. It got like 5’ tall, but the ears didn’t really develop. I’d see people driving by give it a second look, sometimes, and wondered what they might be thinking. Always gave me a little chuckle.