Here is a recent trailcam pic that shows a ghostly object that actually casts a shadow on the ground below it. In the frame prior to this there is nothing to see. In two frames prior there is a doe exiting the frame. Weird!
My guess is that it was a bat that the flash washed out... but then that is a large bat. If you look closely at the pic with the deer exiting the frame there appears to be the same figure in the far background in the upper left. Still pretty eerie! The wife now wants to camp there for the night to try and see it. I told her she was crazy!
Not a bat...moth. Big one, too. The wings and body are the right shape and you can see the antennae. It's close enough to the trail cam to wash out the color while blocking the light from the flash and throwing a shadow to the ground.
A perk of majoring in wildlife biology in college is the plethora of hunting knowledge that you collect throughout your course load. One of the most important factors in whether an area can hold large quantities of animals or produce large antlers is forage.
Most universities, state schools and even community colleges offer basic botany courses and plant ID courses. Although it might not be feasable for the average middle age hunter to pay tuition and go back to college to learn hunting...