World War II Patch: Bird of War

A Louisiana man received a military style foot locker filled with papers that apparently belonged to a World War II airman, Lionel B. Potter. Also inside were two patches embroidered with an evocative symbol: a bird in the clouds dropping a bomb. Is this a unit insignia? He’s turned the investigation over to Wes Cowan. Were these patches used in World War II? Who made them and why?