As well as vampires, regular bats also exist in Young Dracula.

Bats are mammals whose forelimbs form webbed wings, making them the only mammals naturally capable of sustained flight.

Regular bats are not known to possess any type of special powers, however they seem to appear around vampires. Vampires might be able to order certain species of bat to make a property more desirable ("Open House"). As mentioned by Jonno Van Helsing in series 1, bats are protected species.

In "The Darkest Hour - Part 1" Asan Ramanga talks to a couple of real bats in Garside Grange, mistaking them for vampires.