Pigeons returning to loft November 1917

Return of the pigeons with their messages from the trenches. November, 1917.

Credit: Canada. Dept. of National Defence/Library and Archives Canada/
Restrictions on use: Nil
Copyright: Expired 
Copy negative PA-002074
Item no. (creator) O-2176
Box (26)
Other accession no. 1964-114 NPC
Photographer: Rider-Rider, William, 1889-1979.
MIKAN no. 3381005