You’ve got mail: Messenger pigeons in baskets being transported to the western front, 1918 Posted on November 11, 2018 by Matthew 2 Share this: Share on Facebook (Opens in new window) Facebook Share on X (Opens in new window) X Like Loading... Related
MATTHEW'S ISLAND 
I think you mean messenger pigeons. Passenger pigeons were nearly extinct by WWI.
Yes, my mistake, I meant messenger pigeons.