Not aviation related....
One year, during the 1000yd F-class national championship high power rifle matches at the Whittington Center near Raton, NM, I noticed something sweep across the bottom of the image in my scope while setting up a shot. My scorer started laughing and then I hear the RSO call for a cease fire across the line. When I looked up a buck pronghorn was chasing his harem of 4 does around the range about 900yds out. This carried on for about 10 minutes then out comes the pickup truck to chase them off. The buck would just do an end around and come back to the center. Finally he escorted the does to safety. The following year, at nats, same thing happened prior to commencing firing one morning except it involved a young mule deer buck. Bullets and props don't seem to scare some wildlife until your are specifically hunting them....then, they easily stay well out of range.