[quote=@Nightrunner]
Lol. Pass on Leatherface.

Insight cuz of his hearing and smelling boosts. I dunno. Just thinking. I may have to use insight as a name later.
[/quote]

Hmmm so here's what I can think of:

Screech
Echo
Leatherwing (Alternatively, Silverwing, Brownwing, Blackwing, Darkwing)
Nightbat
Midnight
Sonar
Camaztoz (Mayan Bat God)
Sotz (Mayan for Bat)
Nosferatu (Alternately something relating to Vampires, Vamp, Drac etc)
Chiropter