British Wildlife of the Week: Capercaillie

If you happen to be in the ancient Caledonian pinewoods of the Scottish Highlands during April or May, you may hear a very unusual sound. It is often likened to a champagne cork popping and the liquid being poured, but in reverse – starting with the liquid gurgle and ending with the ‘pop’ (listen to it here). These bizarre noises are the spring display calls of the male capercaillie, one of our most impressive and dramatic birds.