On my bucket list someday. I've only ever seen them one time in my life. On a mule deer hunt between Laramie and Casper, up on a hill, had a flock of 20 fly right over the top of us within gun range. Had to do a double and triple take to realize what I was seeing. They set wings and glided off the hill down into the sagebrush flats below, probably flew a mile from up high to down below.