This video from the USA says about itself:
24 September 2016
American Kestrel falcon hunting grasshoppers from a power line in open range land. This has been a challenging bird to catch on film and it is a bit shaky at times. The kestrel would watch for prey – grasshoppers and large dragonflies and then take off – sometimes hovering over the field before striking. I wish I could get video of that, but these are very small and fast raptors and with a wide shot one can barely see them.
The American kestrel (Falco sparverius) is the smallest and most common falcon in North America. It has about a two to one range in size over subspecies and sex, varying in size from about the weight of a blue jay to a mourning dove. It also ranges to South America, and is a well established species that has evolved seventeen subspecies adapted to different environments and habitats throughout the Americas.