Coloration evidence for natural selection J. Bowler wrote that Darwin's theory In his 1889 book "Darwinism", the naturalist Alfred Russel Wallace considered the white coloration of Arctic animals. He recorded that the Arctic fox, Arctic hare, ermine and ptarmigan change their colour seasonally, and gave "the obvious explanation", that it was for concealment. The modern ornithologist W. L. N. Tickell, reviewing proposed explanations of white plumage in birds, writes that in the ptarmigan "it is difficult to escape the conclusion that cryptic brown summer plumage becomes a liability in snow, and white plumage is therefore another cryptic adaptation." All the same, he notes, "in spite
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