Black Grouse Welfare: Upland Habitat and Lek Disturbance

Black grouse are declining in UK upland habitats with welfare concerns centred on lek site disturbance, predation pressure, and habitat quality on managed moorland.

Key Facts

UK black grouse population declined by 80% between 1970 and 2000, with some recovery since
Lek sites where males display are used for decades and are particularly sensitive to disturbance
Black grouse require a mosaic of heather, bog cotton, and forest edge habitats
Habitat restoration including woodland edge creation has benefited black grouse in some areas
Black grouse are ground nesters vulnerable to predation during incubation and chick-rearing

Welfare Considerations

Black grouse welfare is primarily threatened by lek site disturbance during spring display, habitat degradation, and predation. Repeated disturbance of displaying males at lek sites during April and May disrupts breeding behaviour and causes energy expenditure for birds that should be conserving resources for reproduction. Female grouse disturbed during incubation may abandon nests. Chick survival depends critically on invertebrate prey availability in the first weeks after hatching — cold, wet springs reduce invertebrate activity and cause chick starvation. The welfare of individual black grouse is intimately linked to the quality of mosaic upland habitat management around lek sites.

What You Can Do

Stay at least 200 metres from known black grouse lek sites during March-May
Support upland habitat restoration including moorland edge management that benefits black grouse
Engage with upland land management policies that incorporate black grouse habitat requirements
Report any lek site disturbance concerns to RSPB Scotland or equivalent conservation organisations