Any more information?
Apart from this which I found:
Fri 15 Jul 2022 08.00 BST
On a pleasant autumn evening in 2007, a wildlife warden at the Dersingham Bog nature reserve in Norfolk took a friend to see two female hen harriers returning home to roost. But as dusk descended, they were startled by the sound of shotgun blasts.
After the first shot, they saw one of the rare birds of prey “immediately fold and drop out of sight”. About 30 seconds later they heard a second blast – and another harrier fell from the sky.
The shots appeared to have come from inside Sandringham, the Queen’s rural retreat bordering the reserve – where Prince Harry, then aged 23, and a close friend were out shooting ducks that evening.
Perhaps it hasn't been well publicised, but Prince Harry is now a very responsible married father of two who resides in America and gives talks on the environment.