Have you ever walked through some woodland and wondered what creatures might live there that we can’t see? That use their superb senses and camouflage to hide from human eyes and come out only when no-one is around.
Ever looked out into the garden, or the street and wondered what wildlife visits in the night? Maybe you’ve heard the scream of a fox, the hoot of an owl or the snuffling of a badger.
One way to find out is to throw a light switch or head out with a torch, but by doing so you might frighten off the animals you’d like to see, or at the very least change their behaviour hugely.