Noticed clinging to branch of birch tree after dark.
No interactions present.
It is a caterpillar. Crane fly larvae live in the soil.
Have a look at the Scalloped Hazel larvae in ukleps, the face in particular- it looks quite like it. The little platform structure at the rear end is right also but I should add its a feature of several geometridae larva(not all). If not SH possibly a close relative but there are good close ups of the head in ukleps and this might just be that. The larvae are quite mature right now.
Lat/Lng: 53.3, -6.3
OS grid ref: SG1590