Wild Kestrel Welfare and Agricultural Change

Kestrel populations have declined significantly on farmland; their welfare as hovering predators of small mammals depends on grassland quality and availability.

Key Facts

Kestrel populations declined by approximately 36% in the UK between 1969 and 2019
They hunt by hovering and detecting small mammal movement in short grass
Farmland kestrels have declined more rapidly than woodland edge populations
Loss of permanent pasture and rough grassland eliminates habitat for vole prey
Field margins and grass verges provide important hunting habitat in arable landscapes
Kestrels have very high energy demands from hovering - hunting success directly affects welfare
Road verges mown too frequently eliminate vole habitat adjacent to hedgerow nest sites
Nest box provision has been shown to increase kestrel breeding density locally

Welfare Considerations

Kestrel welfare is tightly linked to prey availability in short, rough grassland. The energetic cost of hovering means that insufficient prey in overworked agricultural landscapes causes nutritional stress. Chicks in territories with poor prey availability experience starvation. Adult kestrels in energy deficit from unsuccessful hunts experience progressive physiological stress. Maintaining rough grassland including road verge habitats, field margins and set-aside provides both the prey base and the structural habitat on which kestrel welfare depends.

What You Can Do

Advocate for road verge management that retains rough grassland rather than frequent mowing
Support agri-environment scheme options for grass margins and field headlands
Install kestrel nest boxes in rural areas with appropriate open hunting habitat
Report kestrel sightings including road casualties to BTO BirdTrack
Support RSPB farmland bird recovery programmes that benefit grassland predators