Hello new here but hoping members can help. We are lucky to live on the edge of the Peak District by deciduous woodland and near a stream. We have the most wonderful morning chorus and every day I hear this call and I cannot find answers from online searches and typical bird call recordings. I’m afraid I don’t have a recording, but there is a very distinctive long held clean note that descends/slides (like a whistle that slides down the scale). No trills. It might have a ‘pip, pip, pip, pip’ before it (usually 4 or 5 pips with a pause, then the long note) but I can’t be sure as there are so many calls going on at the same time. Would love to solve the mystery! Thank you