A dairy farmer has urged drivers to slow down on Minchinhampton Common after the death of a number of cattle, including one that was in calf.
Two cows have been in separate incidents on the Common in less than two weeks.
Another calf was reportedly hit by a car early last month (September) but survived.
Hundreds of cattle roam free on the Common but several are killed every year by motorists.
Farmers are now calling for new measures to be introduced to protect the cows.
Locals have a Facebook page called 'Kill Your Speed, Not Us', aimed at raising awareness of driving speeds on Minchinhampton Common.
Many have expressed their anger towards reckless drivers, saying they need to be aware of the consequences.
One post read, "Please avoid common after dark & drive like a saint if you need to cross it."
Dairy farmer, Melissa Ravenhill said, "The cows have absolute right of way on the common, they cannot ever be held to blame".