I would just leave it alone.

For those who feed suet. I hear to never use vegetable oil of any kind. Suet has to be lard or animal fat so it doesn’t do something bad to their feathers!!! Peanut butter i hear is good. Getting below zero for several nights and that never happens here hardly ever. Worries me about all my birdys. Especially the tiny black headed chickadee! so small, even smaller than the winter finches. anyway my worries brought me here. good article thank you.

Charis, good question!

Good news: To a large degree, birds will eat what is OK for them to eat, and not eat other stuff. To some extent, if there is a variety of feed available in the wild and in feeders, the birds will sort themselves out.

Bad news: Cracked corn differential attracts at least one or two invasive bird species, like starlings, and also things like bears and large rodents. That will all depend on where you are feeding them, of course. Texas does not have a lot of wild bears, but there are probably plenty of large rodents.

It is possible that because of the way it is grown, cracked corn will have a certain amount of toxic stuff on it or in it which may not be good if it is the main food source for birds.

Cracked corn is probably pretty bad at staying fresh, not getting moldy or rotting, compared to many other seeds like sunflower.

So, unless one is specifically going for the chicken-like birds like grouse, prairie hens, wild turkeys, etc. (all of which probably do great with corn, as long as the corn is freshly put out frequently) then the best bird feeds are probably mixtures of more oily seeds (like sunflowers) and some smaller seeds (like thistle) and sure, with a background of cracked corn in there as well.

Diversity in feed types will produce diversity in what comes to your feeder, and reduce any given negative effect of a particular feed.