Kestrel – Wikipedia

The term kestrel (from French: crécerelle, derivative from crécelle, i.e. ratchet) is the common name given to several species of predatory birds from the falcon genus Falco. Kestrels are most easily distinguished by their typical hunting behaviour which is to hover at a height of around 10–20 metres (35–65 ft) over open country and swoop …

https://en.m.wikipedia.org/wiki/Kestrel