 Remote sensing using unmanned aerial vehicles, UAVs, has become increasingly popular due to their ability to capture high-resolution images and data from difficult to access locations. This review focuses on the use of UAVs for remote sensing of vegetation in rangelands, forests and agricultural environments. It covers the various types of UAVs used for remote sensing, the different payload options available and the applications of these UAVs in each environment. This article was authored by Esther Salami, Christina Baradou and Enrique Pastor.