We have been here before.
https://www.independent.co.uk/news/uk/commoners-with-nothing-in-common-5417698.html
The plan to install cattle grids and a few cattle to keep scrub down, which had the full support of the Dorset Rangers (do they still exist?) was scuppered by retirees from the city who took their dogs daily to Breach Common and were frightened of cows. One lady loved the mass of pretty pink flowers (Rosebay Willow Herb, or "Fireweed") and started a BVM campaign to save them.
The Independent article isn't entirely accurate - the Commoners had been consulted, and one of the Commoners would have put the cows on the Common, as is his right. The Common now has a lot of Himalayan Balsalm, and some Japanese Knotweed.
Underneath the scrub there are the remains of the WW1 trenches - dug by soldiers as training before the went to the Front to be slaughtered. In 1981 when we moved to Enmore Green these were plainly visible.
The pond used to belong to the workhouse, which was where the Umbers Hill estate now is