Sorbus aucuparia
Amongst the debris was a seed. It fell. It was nurtered by nature and, as such, it developed. The resulting tree is here to stay! Thank you Blackbird. Though, the sound of your song in the gathering gloom is reward enough! I do not begrudge for one moment the berries that your ancestors enjoy...
The position of the tree would in ideal circumstances, have been a foot or so to the left; But who am I to complain? I can live with it!