The kestrel, once Britain's most common raptor, has declined by 36% since the 1970s due to prey loss, agricultural intensification, and habitat change.
Kestrels hunting road verges face high mortality from traffic. Agricultural intensification removes rough grassland and prey. Heavy rainfall reduces hunting efficiency - kestrels cannot hunt in driving rain. Starvation in juveniles dispersing in autumn is a significant welfare concern. Nest disturbance during the breeding season causes egg abandonment. Many kestrels found injured by the public are road traffic casualties.