Bats in the Belfry

I'm not entirely sure why 'Bat' has made it into the Wicca Deck (Sally Morningstar, US Games 2014). I didn't realise bats had any particular significance in Wicca. I know they are associated with 'spookiness', but what's spooky about Wicca? As far as I know, bats are only loosely associated with 'witchcraft' in the Halloween sense - Frankenstein's monster, Wolfman, Dracula and 'witches'. To be honest, I don't really like those associations, though they are sometimes fun. I did some googling and found a website which suggested that bats could be associated with Wicca because of 'their affinity for nighttime, and because they maneuver by non-ordinary senses. As well as, perhaps, the shamanic powers bats represent.' I'm not convinced. 

In this deck, Bat represents a change from within. Maybe because bats appear out of the darkness of caves? Seems a tenuous link. Still, I will remain on the lookout for anything that might change my consciousness today. :)