. "The Feathered Spies is the fourth episode of British television series The Secret Service. It seems impossible that aerial photographs of a secret British installation have been offered for sale on the international espionage market when no aircraft have been seen to fly over it. With Father Unwin's keen investigation the answer becomes clear, a miniature camera attached to a homing pigeon has been doing the job. At the home of the pigeon's owner, a miniaturized Matthew has to overcome a large dog. Now time is running short, another pigeon carrying a bomb is heading towards the installation, and must be stopped."@en . . "1969-10-12"^^ . "4"^^ . "The Feathered Spies"@en . . "The Feathered Spies"@en . "The Secret Service"@en . . . . . . "Tony Barwick"@en . "e15c11"@en . "Peter Anderson"@en . "The Feathered Spies is the fourth episode of British television series The Secret Service. It seems impossible that aerial photographs of a secret British installation have been offered for sale on the international espionage market when no aircraft have been seen to fly over it. With Father Unwin's keen investigation the answer becomes clear, a miniature camera attached to a homing pigeon has been doing the job."@en . . "1"^^ . . .