Took this audio recording while walking my dogs near a river valley in Central Illinois. The noise I’m not sure about is like a low whooshing sound. Kind of like someone spinning a jump rope really fast through the air.

If I had to guess the noise was on the other side of a 500ft clearing in a tree line. The Merlin app wasn’t able to identify it as a bird of any sort and I have no idea what sort of mammal would make this noise in the midwest. It’s not like any bobcat, fox, or coyote call I’ve ever encountered and I cant imagine it was something smaller than that still.