When ever I see a picture of a swarm of bats I am reminded of that great scene from the 'Batman - Year One' comic mini-series. They also included it in the film 'Batman Begins'.
Bruce is in a building surrounded by cops. He has no way to escape and we all feel for a second, that he is done for. Then, as he always does, Bruce pulls a rabbit out of his hat - or in this case a subsonic device - and all the bats from underneath Wayne Manor fly to his rescue, allowing him to escape the building surrounded by a cloud of bats. Wicked cool.
