This photograph by Jim Brandenburg is the cover of the book The Masters of nature photography published in 2013 at Firefly.
Ten breathtaking portfolios from ten of the world's greatest living photographers of nature - groundbreaking images that have inspired a generation of photographers and transformed nature photography into an art form. Jim Brandenburg ; David Doubilet ; Pal Hermansen ; Frans Lanting ; Thomas D Mangelsen ; Vincent Munier ; Michael "Nick" Nichols ; Paul Nicklen ; Anup Shah ; Christian Ziegler.
http://www.photoby.fr/en/miscellaneous/1638-nl116-wild-konic-horses.html