Pigeon Camera International Spy Museum

LFI, Stories

The Turn-of-the-Century Pigeons That Photographed Earth from Above

International Spy Museum

CIA unveils Cold War spy-pigeon missions

The International Spy Museum: Espionage through the ages - Washington Times

Pigeon photography - Wikipedia

From a pigeon camera to lipstick gun the wacky gadgets used by spies

Pigeon Camera International Spy Museum

Pigeon Camera - CIA

Washington, DC: International Spy Museum