I've changed both movies. The "short" gives Yellowhammer hunger/juvenile contact call. The main feature is another bit of bird song sampling this time by the wonderful Yes from the stunning Close to the Edge. The piece is too long for one movie so follow the link to YouTube for pt2. It's a rubbish recording that doesn't do the musicianship justice and a bit of an acquired taste to boot - search out the album for a bit of perfection. Common with the Floyd piece is a Nightingale sample and river references.