A few years ago, BirdLife International has classified the threats that the Lesser Kestre is facing in Europe according to their importance. The results are indicated in the following list:
- The reduction of suitable foraging sites next to the nesting sites. This is due to urbanization and intensification of agriculture, which further leads to the reduction of available prey, irrigation, forest plantations and dams.
- The reduction of foraging grounds in wintering areas. This is caused by desertification, construction of dams and reduction of prey availability, use of pesticides, as well as the overgrazing and the degradation of meadows.
- The use of insecticides has significant influence on the abundance of insects in the whole distribution area of the species - thus affecting indirectly the Lesser Kestrel.
- The repair or demolition of old buildings that lead to loss of nesting sites.
- The competition with other species, such as crows, for suitable nesting sites.
- Direct losses: in some countries some practices are still in use such as illegal hunting, trapping in order to sell individuals and eggs' collection.