They'd be beyond foolish to ruffle those feathers again. I'm not saying that the name's legitimately offensive, but they clearly had one heck of a backlash last time they tried to use it.
For those of you following along at home:
http://en.wikipedia.org/wiki/Mantis_(roller_coaster)
Yes, you may think it would be beyond foolish, but, It looks like they might be trying to ruffle those feathers again....According to the trademarked name by Cedar Fair L.P, Banshee...
http://www.trademarkia.com/Banshee-85913369.html