The place has gone or never existed. This is an auto-generated note from MAPS.ME application: a user reports a POI that is visible on a map (which can be outdated), but cannot be found on the ground.
POI name: Saint Swithin's Deer Farm
POI types: building
OSM data version: 2017-05-11T13:22:09Z
#mapsme

"Airfield closed"
POI name: Filton Aerodrome
POI types: aeroway-aerodrome
OSM data version: 2017-05-11T13:22:09Z
#mapsme