Buzzing in Beaver County, Pennsylvania

The Saturday night before Easter 2020, I was sitting outside by a crackling fire, all alone. Was about 11:30 at night, and I had some music playing low on a small Bluetooth speaker. From way deep in the valley below me, and I mean it’s a huge expanse of woods back there, a couple miles to the next road, I heard a bone chilling ethereal howl. Then I heard it again. Turned my music off, and listened intently. I heard it three more times over the next minute or so. Too faint to record but loud enough to hear beside a crackling pine fire. Each instance was three or five seconds long, sounded “WHOOOOHRRRLL”. Started soft, picked up in intensity, then tailed off. Whatever it was it was very loud, very powerful, almost resonated like a train whistle does from a distance. I could also tell the sound was projected in different directions on a couple of the howls. I have spent a lot of time in the woods in my life. I'm an avid hunter, and an all around outdoorsman. I'm familiar with the animals that live here in PA and I know I didn't hear one of them. I know what barred owls sound like, coyotes, dogs, people... Pretty sure this was none of those. Whatever made that sound was large and powerful. It stood the hairs on my neck. I sat listening for another half hour or so and didn't hear it again. That's when my mind got to wandering. I spent pretty much the entire next day (Easter Sunday) listening to recordings on YouTube and the like and a few sounded a lot like what I heard. A supposed bigfoot recording from Westmoreland County PA and the 1994 Ohio Howl in particular were eerily similar. What I heard was slightly higher in pitch than the Ohio sounds, but almost identical in tone change, cadence and duration. It's worth noting that I actually I live about 15 miles east of the area where that was recorded.