Falco, which includes 40 species of falcons, is a genus in the family Falconidae. 

Of the Falco genus:
- Some small species of falcons with long, narrow wings are called hobbies,
- Some that hover while hunting are called kestrels.

1/ Amur falcon (Cắt Amur, Falco amurensis)
2/ Laggar falcon (Cắt Ấn Độ, Falco jugger), also known as the lugger falcon or jugger 
3/ Oriental hobby (Cắt bụng hung, Falco severus)
4/ Peregrine falcon (Cắt lớn, Falco peregrinus), also known simply as the peregrine
5/ Common kestrel (Falco tinnunculus), also known as the European kestrel, Eurasian kestrel, or Old World kestrel
6/ Merlin (Cắt lưng xám, Falco columbarius) 
7/ Eurasian hobby (Cắt Trung Quốc, Falco subbuteo) or just hobby

Falco, Falcon: Hawk, eagle (Late Latin).
The genus name falco derives from Late Latin falx, falcis, a sickle, referring to the wing profile of the bird (or referencing the claws of the bird?).