Today a vulture took off with my mask during SI. I wasn't even near my gear, Iw as chatting out of sight of it with a couple from Belgium. Some random person came over and asked if it was my gear and I said yes, they said "the vultures really like it....we just chased them away but they tried to take your mask!" I jogged over to the gear (other side of the building) and sure enough, there was dirt all over my gear on the table (vultures climbing over it) and my mask was on the ground several feet away. My buddies mask was on the ground but it had a snorkel on it, I think that kept them from taking it too far. There are multiple chunks missing fromthe skirt but it sort of worked so I dove with it anyway...but I couldn't help but think of the people that carry extras. I got lucky, if that other person hadn't happened by (the springs were pretty much deserted, that's why I didn't mind leaving my gear) the birds might have taken it completely away, or destroyed more of it.