Man has always been intrigued by storks, an extraordinary group of birds including the hammerhead, openbill, marabou, and the grotesque shoebill or whale-headed stork-. The most famous is the cherished white stork, the subject of many legends and fables. Heinz Sielmann's film shows 'A Summer with the Storks' in Germany before they migrate south to pass over Istanbul in one of the most spectacular sights of the bird world.