“The American kestrel (Falco sparverius) is the smallest and most common falcon in North America…….
The American kestrel is a common bird used in falconry, especially by beginners. Though not as strong a flyer as many other larger falcons, proper training and weight control by the falconer allows many American kestrels to become effective hunters of birds in the size range of sparrows and starlings, with occasional success against birds up to approximately twice their own weight.”
~ Wikipedia (https://en.wikipedia.org/wiki/American_kestrel)
Image credit: North American Kestrel By George Rosema
Text & image source: The world of birds https://web.facebook.com/The.world.birds.TR.16/