PHOTO: Getting the message out: British troops release a carrier pigeon in August 1940.
Permissions: This image was created and released by the Imperial War Museum on the IWM Non Commercial Licence. Photographs taken, or artworks created, by a member of the forces during their active service duties are covered by Crown Copyright provisions. Faithful reproductions may be reused under that licence, which is considered expired 50 years after their creation.
Source: wikimedia.org
