possible error i could be wrong here but in hitman blood money in that last cut scene just before diana enters his hideout the article assumes kills the canary by snapping his neck however since this is done off screen and also the canary is caged my assumption was that snapped his fingers and the canary stopped chirping this would seem to fit in with the fact that takes care to take the cage with him out of harm's way when he hears someone coming just saying that we don't know that kills the canary particularly since the sound is more like the snapping of fingers then the breaking of a creature's neck any comments