When we lived in Wales we used to keep watch on the nest of a peregrine falcon. It involved long hours ensuring no one stole the eggs to sell to falconers in the Middle East and while we lay in the grass, we also got to watch cuckoos.
The plump, barred birds picked caterpillars off the bushes and squeezed their inner ends down their throats like a thrifty dentist squeezing the last of a tube of tooth paste. Since then I have rarely seen them and the only confirmation that the they still exist has came from the unmistakable call of the male bird.
When we first moved to France I heard a few each year and then there were none , but this year, while feeding my sparrows, I heard a call, loud clear and wonderfully unmistakable .
On the same day we stopped by a thin line of reeds between two fields and listened to the sweet call of a very different bird. If you look closely at the photo you can see a very small bird singing. It is a reed warbler and it is smaller than a sparrrow and weighs the same as an envelope. This is the tiny bird that most often raises the young of the cuckoo. Their own chicks are thrown out by the cuckoo hatchling who has never laid eyes on its own parents . By mimicking the sound of a hungry baby reed warbler the cuckoo encourages its diminutive parents to feed the imposer until it dwarfs them in size. When it is fully grown the cuckoo sets off for the rain forests of central Africa, without ever having seen another cuckoo in its life.
It is an extraordinary story of how interconnected we are on this small planet and how a single evocative sound in one part of the world links us to all of the rest .