They might be small, but hummingbirds get really aggressive when it comes to flower nectar. Subscribe: bit.ly/BBCEarthSub Watch more videos from BBC Earth: Planet Earth bit.ly/PlanetEarthPlaylist Blue Planet bit.ly/BluePlanetPlaylist Planet Earth II bit.ly/PlanetEarthIIPlaylist Planet Dinosaur bit.ly/PlanetDinoPlaylist Wild West This wild frontier has been forged by the elements and built by monumental forces. Over millennia America's most iconic landscapes have been carved out; wind sculpted deserts, like Death Valley and the Grand Canyon; giant redwood forests fed by precious waters; and extreme coastlines - from the wave sculpted shores of the pacific to the warm sheltered sea of cortex. Nowhere in America is more extreme, more varied and more spectacular than the Wild West. Welcome to BBC EARTH! The world is an amazing place full of stories, beauty and natural wonder. Here you'll find 50 years worth of astounding, entertaining, thought-provoking and educational natural history content. Dramatic, rare, and exclusive, nature doesn't get more exciting than this. Want to share your views with the team behind BBC Earth and win prizes? Join our fan panel here: tinyurl.com/YouTube-BBCEarth-FanPanel This is a channel from BBC Worldwide who help fund new BBC programmes Service information and feedback: bbcworldwide.com/vod-feedback--contact-details.aspx