Pigeon

Pigeons were a species of bird native to the planet Earth.

They were utilised as carrier birds in the Holy Land. By 1400, having witnessed their use during the Crusades, the English imported this tactic. (AUDIO: The Doctor's Tale)

In 1943, pigeons were used to test a new chemical weapon planned for use in destroying Russia's government after World War II ended. (TV: The Curse of Fenric)

The First Doctor declared that he had "the directional instinct of a homing pigeon". Later, Barbara Wright and Ian Chesterton encountered a large flock of pigeons in Trafalgar Square. (TV: The Chase)

The TARDIS startled a flock of pigeons when it materialised in Fitzroy Square in 1966. (TV: The War Machines)

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

Frobisher once took on the form of a pigeon but found himself attacked by an owl. (COMIC: The Shape Shifter)

The passenger pigeon was a type of pigeon, and was worth 100 points in the I-Spyder Book of Earth Creatures if it was spotted. (PROSE: The Last Dodo)

The Eleventh Doctor adored carrier pigeons. Major Alec Palmer once did a military operation involving carrier pigeons. (TV: Hide)

Clara Oswald's grandmother met her future husband under circumstance that somehow involved a pigeon. (TV: The Time of the Doctor)