A film series by Heinz Sielmann.

On his way to the Galapagos Islands, Heinz Sielmann visits the barren coast of Peru and then the guano island of Chincha where millions of seabirds nest, rearing their young on the inexhaustible riches of the Humboldt Current. The guano in its turn brings fertility to the mainland desert.
Commentary spoken by Derek Jones.
Produced by BBC Natural History Unit
From the West