CIA spooks employed a division of SPY PIGEONS to secretly pry behind the Iron Curtain, startling declassified documents reveal.
The files disclose the birds were trained to photograph sensitive military sites inside the Soviet Union during the Cold War.
The birds were trained for top secret missions to photograph sensitive military sites[/caption]
They also reveal ravens were used to drop bugging devices on Kremlin window sills and dolphins were trained for dangerous underwater missions, reports the BBC.
Bosses at the CIA believed its menagerie of animals could fulfil “unique” tasks for the agency that humans just could not.
The newly-released files show the 1970s’ operations were codenamed Tacana and explored the use of pigeons with tiny cameras to automatically take photos.
Missions relied on the fact the well-trained birds possessed the ability to always find their way back home.
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However, the use of pigeons for communications dates back thousands of years but it was in the First World War that they began to be used for intelligence gathering.
The CIA also looked at whether migratory birds could be used to place sensors to detect whether the Soviet Union had tested chemical weapons.
A previously reported spying operation called Acoustic Kitty involved placing listening devices inside a cat.