Between glass curtain walls and art installations, birds just can’t catch a break. For their Venice Architecture Biennale project Pigeon Safari Swiss artist Julian Charrière and German photographer Julius von Bismark captured, airbrushed, then released the pigeons of St. Mark’s Square. The resulting rainbow-colored flock has caused Biennale-goers and tourists alike to do a double take. Charrière told the Italian newspaper Corriere della Sera, “Pigeons make up part of our urban landscape, but we view them as though they are an unrecognizable mass, whereas each one has its own identity.” While a newly teal pigeon may imagine itself a peacock, conservationists expressed concern that the birds’ unusual colors would deter mating.