We used to have our rations parachuted in at our forward base in Borneo. Ghurkhas like to have their food delivered 'on the hoof' as it were so chickens were in little cages on the pallet.
One day one 'snatched' as it came out of the back of a Beverley and the load broke up in the air. Half the chickens went ballistic with the hard stuff but a cage broke open and three or four catapulted into the air at about 400 ft..
Their flying technique could be described as messy but they didn't hit the ground too hard and had the privilege of staring at the inside of a sack until their necks were wrung.