Ring Ouzel Welfare: Upland Heather Moorland Breeding Decline

Ring ouzels are declining mountain thrushes that breed on upland heather and grass moorland in the UK, facing welfare pressures from habitat degradation, climate change, and food availability changes.

Key Facts

Ring ouzels are the mountain counterpart of the common blackbird, with males showing a distinctive white crescent
They are summer migrants, arriving from southern Europe and North Africa in March
UK breeding population has declined by an estimated 60 percent since 1970
They nest in steep heather slopes and gullies, requiring undisturbed rough vegetation
Earthworm availability in spring is critical for newly arrived adults to recover body condition after migration

Welfare Considerations

Ring ouzels face welfare challenges from habitat degradation that reduces both nesting habitat and food availability. Overgrazing removes the heather structure needed for nesting, while bracken encroachment reduces the open areas used for foraging. Climate change is altering the availability of soil invertebrates, particularly earthworms, which are critical for adults rebuilding body condition after their long migration. Mismatches between arrival and prey availability leave birds in poor condition for breeding, reducing chick survival rates. Persecution and disturbance on grouse moors, where ring ouzels often nest, can cause nest failure.

What You Can Do

Support conservation of upland heather moorland through appropriate grazing management
Contribute ring ouzel sightings to BTO BirdTrack and county bird recorders
Advocate for grouse moor management reforms that benefit upland biodiversity
Support agri-environment scheme funding for upland habitat management
Report any suspected persecution of protected birds on moorland estates