As an animal lover, I am always nostalgic about the old Trafalgar Square pigeons each time I visit London, so I was thrilled to see this bit of technology in action which allows pigeons to play a role in the active London technology scene.

This looks like an amazing little piece of technology and the pigeons look super stylish!

It is also very encouraging that the welfare of the birds is paramount in this study. Through smart use of big data in the analysis of the study, let's hope pigeons can play an active role in trying to reduce pollution in the capital.