remote-controlled pigeons

Pigeonbots-- apparently not controlled via MFB stimulation, but direct motor control.

http://blog.wired.com/defense/2007/02/cyborg_flying_r.html
http://tenementpalm.blogspot.com/2007/02/psb-buys-tiny-german-spy-copters.html
http://english.people.com.cn/200702/27/eng20070227_352761.html

Scientists with the Robot Engineering Technology Research Center of east China's Shandong University of Science and Technology say they implanted micro electrodes in the brain of a pigeon so they can command it to fly right or left or up or down.

The implants stimulated different areas of the pigeon's brain according to signals sent by the scientists via computer, and forced the bird to comply with their commands.