Something walking upright in Harrison County, Texas

In 1988 my wife, fiancée at the time, and I were visiting my grandmother who was in her mid eighties at that time. She was living on some property that has been owned by my family for over half a century. She had spent a good portion of her life on this property. It was dusk and we were about to leave so we decided to sit on her porch before leaving. After sitting on the porch and talking for a while we heard a loud AHHHHHHHWW! It was coming from just inside the woods behind her house. I’m pretty familiar with animal sounds, but couldn’t identify this sound. I figured that since my grandmother lived there most of her life she would know what it was. I asked her about the sound and she said that she didn’t know, but she said that she takes all her scraps and garbage to the edge of the woods every evening and lately she had the feeling that she was being watched. She also told me she had started carrying a garden hoe when she went out there. In December of 1989 my friend and I went hunting on my family's property near Caddo Lake. It was about two hours before dawn and we settled into our deer stands. My deer stand was on the edge of a pipeline clearing. My friend’s stand was in a thinly wooded area overlooking a small clearing about a quarter mile away from mine. I sat in my stand freezing my butt off. I didn’t hear or see anything for almost an hour in the freezing temperatures. There was a full moon that night and it was pretty easy to see in the cleared areas. About an hour before the sun started to rise, I noticed something coming out of the woods. It began to walk down the opposite side of the pipeline clearing, towards me. It stayed in the shadows along the side of the wooded area it had exited. It was walking on two legs. At first I thought it maybe a hunter, but I looked hard to see if he had a gun and didn’t see one. This was private property a mile off the nearest road and I didn’t see a gun! It was also deer season, dark outside, and the woods are thick with trees, vines, and briars. This thing had just walked out of woods that are hard for me to walk through during the daytime without getting cutup from the briars. I couldn’t imagine any person strolling through these woods at night during deer season. At first it was probably 75 yards away but it was getting closer. I thought maybe I’m seeing things, but I decided to click the safety off on my gun just in case. Immediately after I had clicked off the safety, this thing heard it; it was barely audible to myself. I could tell it had turned my direction, because its shoulders were now turned towards me. Without missing a step it was now walking backwards while looking at me. After about four steps backwards, it quickly spun around and I couldn’t count the steps after that, it took a few more steps and quickly exited the pipeline. It entered the woods at a different location from where it had exited. I still couldn’t believe what I had seen, but I kept watching where it entered the woods in case it came back out. I noticed one large tree a few yards back in the wooded area that was higher than the other smaller trees around. This tree began to shake violently. After that I was done hunting, but was too scared to exit my stand. I was certain that it had to be Bigfoot. Every noise I heard after that spooked me. I stayed in my tree-stand until my friend came and got me after the sun came up. I told him what I had seen. I don’t know if he believed me but we went to look for tracks. We didn’t find any tracks but we saw a well-worn trail on the ground where it had exited the woods. I couldn’t enter this trail because the trees and briars were real thick. It looked as if small animals could only use this trail, as it was low to the ground. There was a freshly beaten path where it had reentered the woods. I was able to enter the where it had reentered. I noticed an old plastic pail hanging about five or six feet up on the tree that had been shook. I have no idea why this pail was there. Nothing was in it but pine straw. The woods were too thick from that point on and didn’t see where it could have gone from that point.