Where is that hedgehog?

In the last fortnight we have had a visiting hedgehog which Hector does not care for. I think it enjoys eating the remnants of the sunflower hearts the goldfinches drop. Someone is hopping mad and on the warpath!
I have removed it a couple of times and even placed it in next-door's garden. However, it returns in spite of Hector's frantic barking. He has lunged at it and tried to bite it but to no avail.
Poor little hedgehog! At least it can roll up till that horrid barking beastie goes away!