See a Pigeon-Eye View of Toronto
By CBC Docs  

Onboard cameras are not entirely new for birds. In fact, more than 100 years ago, Dr. Julius Neubronner patented a miniature pigeon camera activated by a timing mechanism. 

What is a first is capturing moving images from the bird’s perspective in high definition. Using a special harness, and regular training with an increasing weight load over several months, wildlife cameraman Jonathan Watts was able to secure an HD camera for the first time ever on a pigeon. The resulting images are a stunning and unique POV of a pigeon in flight in downtown Toronto.  (note: the online video is not full HD, the file size was reduced to decrease loading speed)

Learn more on 'The Secret World of Pigeons'.