A swarm of about 18 1 foot long bats that look extremely similar to each other. Each one is covered jet black fur, and has strikingly silver-colored wings that resemble those of a vampire bat in shape. The hands at the end of their wings have long fingers tipped with claws that gradually clear to resemble glass. All their eyes are colored an extremely deep shade of blue (like the Fremen from Dune), and sharp, needly canines poke down from their lips.
The behavior of the bats is strange and eery..they often do the same thing at precisely the same time, such as talking. They sometimes move swiftly and mechanically, and at least 6 are usually looking in different directions, observing various things with the stubborness of a machine.
The swarm calls itself "SilverWings". SilverWings is not so much a group mind, but rather a distributed one..his mind is spread throughout the swarm.
RP info: No they don't drink blood, yes they're edible..if you wanna put up with an angry creature(s).