This is a bird of farm land and open areas and mostly known for the way it hovers 10-20 meters above the ground facing into the wind in search of prey.
Common Kestrels are often seen hunting near roads where voles and mice can be abundant.
The male Common Kestrel is distinguished from the female by the grey colouration of the head. 
There are 11 subspecies of the Common Kestrel.

1st, 2nd & 3rd photo: This is the subspecies Falco tinnunculus canariensis which occurs on Madeira and the western Canary Islands. Madeira, Portugal, 1 November 2013
4th photo: This is Falco tinnunculus tinnunculus which is found in Europe, North Africa and the Middle East. Ferragudo, Algarve, Portugal, 1 June 2023
5th photo: EVOA Visitor Centre area, Tagus Estuary Nature Reserve, Portugal, 7 October 2021