I recorded this a couple of months ago during a trip to Westonbirt arboretum. There were an astonishing (to me anyway) variety of birds tweeting merrily away. I can recognise a chiff-chaff, also you can hear a woodpecker knocking – not sure what the others are though.
The only annoying thing was a light aircraft that seemed to be constantly flying around overhead – those things cause a noise that is extremely irritating and seemed to fill the sky at times. Still apart from the twerp in the plane it was a wonderful day out.