Starling Welfare: Murmurations and Population Decline

Starlings are remarkable social birds that create spectacular murmurations, but their populations have declined by over 80% in the UK since the 1970s.

Key Facts

UK starling populations have declined by 82% since 1970 making them a Red List species
Murmurations involve thousands to millions of birds moving in coordinated patterns
They nest in holes in trees and buildings and are highly sensitive to loss of both nesting and foraging habitat
Starlings are voracious insectivores and soil-probing birds sensitive to loss of permanent pasture

Welfare Considerations

Starling decline reflects the welfare impact of landscape-scale agricultural change on individual birds. Loss of permanent pasture and mixed farming has eliminated the invertebrate-rich foraging habitat that starlings depend on for feeding themselves and their chicks. Nest hole availability in older buildings and trees has reduced through renovation and tree management. Starlings in urban areas find supplementary food at bird feeders but cannot replicate the diversity and abundance of natural foraging habitats. Individual welfare impacts include increased foraging time, higher energy expenditure, and reduced chick nutrition during periods of invertebrate scarcity. The spectacular murmuration behaviors observed at roost sites bring millions of individual birds together in remarkable social coordination, and the loss of this spectacle as populations decline reflects the welfare losses at population scale.

What You Can Do

Maintain mature trees and old buildings that provide starling nesting holes where possible
Provide suet and fat-ball feeders for starlings especially in winter when natural food is scarce
Support agri-environment schemes that maintain permanent pasture and mixed farming for starlings
Participate in BTO Breeding Bird Survey to monitor starling population trends
Advocate for agricultural policy reform that reverses the loss of starling foraging habitat