Wildlife Welfare

Wild Willow Tit Population Collapse

Willow tits have suffered the steepest decline of any UK resident bird, losing over 90% of their population since the 1970s. Understanding welfare constraints informs targeted habitat management.

Key Facts

UK willow tit populations declined by approximately 94% between 1970 and 2020
Willow tits excavate their own nest holes in soft, decaying wood - a critical requirement
Loss of wet woodland with standing dead wood is the primary cause of decline
Willow tits do not use nest boxes with pre-made holes but need soft dead wood to excavate
Adjacent wet woodland, carr, and scrub habitat is essential for willow tit territory establishment

Welfare Considerations

Individual willow tits without access to soft dead wood cannot establish territories or breed, facing dispersal into unsuitable habitats. This welfare pressure from habitat loss drives population decline at the individual level. Conservation management that creates and maintains standing dead wood in wet woodland directly provides the specific welfare resource that willow tits cannot substitute.

What You Can Do

Support wildlife trust habitat management creating willow tit nesting habitat
Advocate for wet woodland protection and restoration in key willow tit areas
Report willow tit sightings to local wildlife trusts - they are genuinely rare