Having just flown in from the Pacific, these Clark's grebes have chosen a freshwater lake as home for the winter so they can breed. But first, a dramatic courtship display is in order to reconnect with their partner. Subscribe: bit.ly/BBCEarthSub #Waterbird #BirdMatingDisplay #America Watch more: Best of BBC Earth 🌍 bit.ly/BestOfBBCEarth Best Animal Fights 🥊 bit.ly/BestAnimalFights Videos over 10 minutes ⏰ bit.ly/3SHJCEJ Planet Earth III 🌍 bit.ly/PlanetEarthIIIPlaylist Frozen Planet II ❄️ https:/bit.ly/FrozenPlanetIIPlaylist Blue Planet II in 4k 🌊 bit.ly/BluePlanetII4kPlaylist Taken from 'Earth's Great Seasons' (2016). Every year, spectacular seasons transform our planet. Spring brings new life, but it's also a dash to wake up and get ahead of everyone else. Summer is a time of long days and glorious abundance. But the living isn't always easy when the temperatures rise. Autumn brings the world's most spectacular transformations...