The Elkhart Daily Truth
detailed a plan to create a protective air fleet for Indiana at low cost by attaching miniature, eight-ounce bombs to 25,000 crows, which would be trained to release the bombs on the enemy. The report included a photograph of one of the "Black Bombers." The "bomb" in the picture was really a salt shaker, and the crow was stuffed.
Although the crow bombers were an April Fool's day joke, there really was a plan developed and tested by the U.S. military during World War II to create "bat bombs"
by strapping incendiary devices to bats, and then dropping the bats on Japanese cities.