No identification made yet.
No interactions present.
Might need more clues to ID such as if there was a ring, colour of gills, details of stem, etc. It might have been worth pulling one up to get some more pics...
Difficult without the detail as Martincito says but it could be Colybia maculata.
Lat/Lng: 53.9388, -2.7469
OS grid ref: SD510494