One overlooked resource for quail is ragweed. This naturally growing forb that is perfect quail and turkey habitat. Two years ago we started seeing quail on our property. Just 10 acres is NWSG, and 2 acres were converted into natural ragweed plots following drought induced failure of last’s spring food plots. Sure enough, quail found the ragweed.
On the question of coyotes eating raccoons, I just saw that coyotes most likely kill raccoons to eliminate food competition. The ‘totes will kill ‘coons over grain or gut piles or in traps to eliminate competition. I have definitely had coyotes take raccoons out of traps, but now I am wondering if their goal was food or to reduce competition. Raccoon has been found in coyote scat, so at least some are eaten by ’yotes.