Snow camouflage as Hugh B. Cott have echoed his observations, adding that other animals of the Arctic such as musk ox, moose, reindeer, wolverine and raven never become white "even in the coldest parts of their range". Cott noted that both animals that hunt, like polar bear and stoat, and prey animals like ptarmigan and mountain hare, require camouflage to hide from prey or from predators respectively. There is little experimental evidence for the adaptiveness of white as camouflage, though the ornithologist W. L. N. Tickell, reviewing proposed explanations of white plumage in birds, writes that in the ptarmigan "it is difficult
Winter Mountain he began the process of recording the new songs at Cube Studios. During the recording process Francis set up his own 'Astral Fox Records' and began planning the self-release of the album. 'I Swear I Flew' was released to critical acclaim in November 2016. Winter Mountain has supported Seal, Ben Ottewell of Gomez, Guy Garvey of Elbow, The Feeling, Ocean Colour Scene, Leann Rhimes, Cara Dillon, Benny Gallagher, Seth Lakeman, Fleet Foxes, Paolo Nutini, Sara and Sean Watkins (formerly of Nickel Creek), Rosanne Cash, Richard Thompson, Grammy award winner Patty Griffin and others. Winter Mountain Winter Mountain is the stage