Titled “Birds of Mammoth”, the effort resembles more of an Audubon poster than an ad campaign. Using hand-drawn custom illustrations, the creative calls out all the creatures found flying above California’s biggest playground. Indigenous birds include the sexy “California Winged Cougar”, the slightly intoxicated “Naked Pale Aler” and the snow-covered “White-Tailed Yard Saler”. Not to mention the newest species to grace the Mammoth skies, Horizon Air.