Pigeon

Pigeons were a species of bird native to the planet Earth. In 1943, pigeons were used to test a new chemical weapon planned for use in destroying Russia government after World War II ended. (DW: The Curse of Fenric)

The Doctor declared that he had "the directional instinct of a homing pigeon." (DW: The Chase)

Anji Kapoor deduced she was not in London as there were no pigeons. (EDA: EarthWorld)