“I contacted the Centre Ornithologique Ile-de-France (Corif). They sent me to see one of the great experts on the bird life of Paris [Guilhem Lesaffre]... ‘There are 40 to 50 species of birds nesting in Paris and more than 200 species regularly seen within the capital, not including the Bois de Boulogne and the Bois de Vincennes,’ he said. ‘Considering how small and densely occupied Paris is, this is enormous.’ There are kestrels nesting in Notre Dame cathedral, in the Eiffel Tower and in the Arc de Triomphe. There are swifts and house martens and black-birds nesting under many roofs and balconies. There are dozens of colonies of black redstarts, a bird which loves cliffs and ruins but finds that chinks in old Paris apartment blocks will do just as well. In the parks and gardens and above all cemeteries of Paris, there are robins and black caps and green woodpeckers and serins... Pere Lachaise cemetery ‘last resting place of Chopin, Oscar Wilde, Edith Piaf and others’ is a ‘real bird sanctuary’, according to M. Lesaffre. It has, among other things, spotted flycatchers and little woodpeckers. And of course there are sparrows... The number of different bird species in Paris seems to be stable, M. Lesaffre said, but the population of birds is increasing. ‘I suspect that there is more food for them now,’ he said. ‘The fashion for window boxes attracts insects. Although there is pollution in Paris, there is not thick smoke like there used to be.’”