There were ear fungus all along the trunk of this fallen elder – the species they are most commonly found on. The hollowed-out part was pointing more or less downwards, so these will have grown after the tree fell.
The Seven Sisters former quarry in the Wrens Nest Nature Reserve looks less attractive now all the underground workings have all had to be filled in with sand to stop them collapsing.
Hopefully, there will eventually be funding to do the work which is needed on them.