Looks like a brush pile... Might be host to any number of animals. Don't usually see coyotes hole up in wood piles, but it does happen (maybe it happens more often in other areas, not really often in KS).
Simple solution: return to that spot, search for other sign. A picture of a brush pile could be home to anything from a beetle to a hobo. Look for tracks, scat, fur remnants, trails in and out, etc. Pretty much eliminates all doubt.