Q: This plant voluntarily appeared in our back yard this summer. Can you ID it?
A: It’s millet, a common component of birdseed because it is inexpensive
In my experience it is not a good idea to feed millet mixtures because birds often scratch it to the ground. There it attracts rats, mice, and chipmunks. This easily leads to a rat/mouse infestation in the house.
It’s best to feed only black oil sunflower seed, which birds consume before anything else.