Who killed the capercaillies?

6 min read

Britain’s largest grouse is one of the most spectacular sights in the Highlands – but at this rate they will soon be extinct. Why? Richard Baynes seeks the culprits

The male capercaillie gives a magnificent display of might in mating season. During the ‘lek’, as it is known, the bird fans its tail feathers, gurgles, wheezes, makes popping sounds and beats its wings before fighting rivals

A dark bird struts from the trees through powdery midwinter snow, its bulky form bowing and rearing. His fan tail is raised and the sharp, belching cry is a clear warning in the icy air. With eyes glittering in bright red surrounds, he is intimidating.

A few months later and spring is in the air. The capercaillie cock is still aggressive, but this time the target is rival male birds, and the cock’s sound is machine-gun staccato, like a football rattle. He clashes with another bird in a flurry of feathers, and the rival retreats. This is the lek, one of the Highlands’ greatest wildlife spectacles, in which cocks display for the right to mate with the hens.

It’s all wonderful to watch, but I can only describe what I see on YouTube. Despite countless visits over more than 40 years to the Cairngorms, heart of the capercaillie range, I have never seen one – and the chances of ever doing so are getting slimmer.

THE RISE AND FALL OF CAPERCAILLIES

A wintry landscape of Scots pine trees in Rothiemurchus forest, Strathspey

The Highland capercaillies’ fortunes have waxed and waned through the centuries. In the 18th century, they became extinct; 200 years ago, they were reintroduced to Scotland from Sweden. By 1970, there were 20,000 birds, spread across areas including Easter Ross, Perthshire, Loch Lomond and Fife.

Since then, however, catastrophic decline has set in. The last estimate in 2022 suggested that just 542 birds are left, half the number six years earlier, and nearly all in Strathspey. It’s forecast that without drastic measures, they will be extinct in Scotland within 30 years.

So what’s killing capercaillie? What should be done about it?

Mountain bikers adjusted favoured routes to avoid disturbing capercaillie habitat
Built on earth using feathers, leaves, twigs and grass, a typical capercaillie nest contains five to 11 eggs
Photos:Alamy

SCENE OF THE CRIME

Beautiful Loch Garten is surrounded by the pine trees of Abernethy Forest, the final stronghold for the capercaillie

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