We appear to have some sort of creature in the walls of the house. The noises can be heard day and night and are 'thumping', banging noises. It's not the scratching noise you would expect mice to make and it seems too heavy for birds, although the offending area is adjacent to the hangar. It is very alarming, particularly at night.
If anyone has any suggestions what it might be and, more importantly, how to get rid of it they would be much appreciated!