Foliage gets bruised, torn, turned over, suffers bent stalks, and turns black instead of green when crushed, all of which you can see when you know what you are looking for. The way to learn that is to lay a set of tracks yourself, with your own feet, through the cover, and then circle back to the starting point to find and see the damage done by your own feet. Get down on your hands and knees, and look at the tracks from a few inches off the ground. Put your good eye closest to the ground. Look toward your source of light. You will see light flashing off the flattened surface where you stepped, where the light is bounced in all directions around the track. This is called " shine " by trackers, and all large animals leave " shine " in their tracks. The lower the angle of the sun or light is to the ground, the more shadows will be cast off the wall of a track, and the easier it is to see shine. Even deer leave shine because even their two toes leave flat spots on the ground.
In green foliage, and moss, you will more likely see what we call " disturbance ", than flats, although flats and shine will dance off logs, and rocks that are stepped on. Check out that opening scene in " Last of the Mohigans", when a footprint on a mossey rock is spotted by Hawkeye and Uncas. Understand the natural " nature of things", and then look for something that is NOT RIGHT!, or out of place. This is called " Sign cutting " and its how you find tracks and footprints, or scrapes, or turned over leaves, or bruised tree trunks, or stalks of lesser plants, etc. Always put the ground you are searching between you and your source of light. On cloudy days, this can be tough, but it is still possible to do.
If you are hunting deep forests that produce this kind of ground growth and clutter, getting a long shot at a bear will be almost impossible. A 25 yard shot is considered long. You know that as a successful bow hunter. With a .50 cal. RB, weighing 185 grains( .495": 177 for a .490" ball)
ball, you are going to kill any black bear that close to you. Just load 70-80 grains of FFg or FFFg powder under that ball, and fire away. Aim small, miss small is good advice. At those ranges, its important to pick a small spot on the bear's chest to aim at, and then squeeze the shot off.