Our neighbours de hedgehogs

Two days ago, as night was falling and I was looking for Domino outside, I heard a sort of gnawingor snarling sound coming from a nearby piece of shrubbery. I walked where the sound was coming from and as I expected I saw hedgehogs. Now I can recognise them from the noise they make, I am that familiar with them. I took this picture. I wonder if they were the same visitors we had in our front garden back in May. I found these two pretty far away from our home, but I have no idea of large the area covered by hedgehogs can be. If theyare the same and if I see them again, I must start thinking about giving them names.