Is this a young Brown Rat? - or a mouse?
No interactions present.
No Yellow-necked Mice in Scotland, so we can be sure that it is sylvaticus. The yellow collar would be visible in this pose. The thin yellow stripe we can see is typical of sylvaticus.
recording wildlife with The Recorder's Year on www.hbrg.org.uk/TRY.html.
Lat/Lng: 55.3817, -3.9882
OS grid ref: NS741115