Is a tree rat a squirrel??? Help me out.

Knocked down corn is almost definetely raccoons. Ocassionally deer will knock it down, but not usually until its turned brown. I've never seen rabbits even remotely interested in corn.

When the corn is green, deer will munch on the leaves, only occasionally the ear itself, coon love corn at all stages of growth. I find that if the coon knock over the stalks, deer will eat the ears on the ground as well. They do not seem to associate the ear with food until its somewhat dry - probably because there is plenty of other green food available in the summer months in my area.

In my area, corn comes into its own in Nov, and Winter for the deer.