The crowd goes wild: FC Barcelona reveals Camp Nou stadium’s animal inhabitants

Swifts, swallows, bats and geckos all enjoy a coexistence of mutual respect' on the football stands, wildlife census shows

In the silence after the final whistle you can hear the blackbirds sing, or perhaps a chaffinch or a Sardinian warbler. Or, if night has already fallen, you may see the bats swoop low over the centre circle as the fans shuffle towards the exits. This is the Spotify Camp Nou, the home of Barcelona football club ... but also of myriad creatures.

Barcelona is probably the first major football club in the world to produce a guide to its stadium's wildlife, after carrying out a census of its animal occupants. The guide is part of the club rethinking its role in the community and its environmental impact, says Jordi Portabella, an environmentalist and former candidate for mayor of the city, now in charge of developing the club's sustainability policy.