Conrad Gessner in 1555. The word "kestrel" is derived from the French crécerelle which is diminutive for crécelle, which also referred to a bell used by
(French: faucon crécerellette) – A Common kestrel Falco tinnunculus (French: fauconcrécerelle) – A American kestrel Falco sparverius (French: crécerelle d'Amérique)