Loud and proud

Secretive corncrakes with a scraping call arrive in the UK this month

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IN APRIL, RARE CORNCRAKES RETURN FROM their wintering grounds in Africa. Once known as land rails, these streaky, moorhen-like birds like to creep through dense meadow vegetation, which makes them infuriatingly difficult to see. But they famously make a racket with a voice that sounds like a piece of wood being moved across the