There has been Ally, thanks for asking.
Whilst he's not home he has been seen so Michelle at least knows that a) he's safe and alive and b) where to put the traps.
Harry was born to a farm cat (belonging to the farmer who lives next door) who was taken in by Michelle and her OH when he was about 8 months old or so.... it would seem he's gone back to the farm as it's familiar territory. Jim (Michelle's OH) bought a night time camera and that picked him up last night. She's over the moon obviously.
Now it's a waiting game of hoping he'll go into one of the two traps they're putting into the field or him