Some of the most precious pieces of countryside in the West Midlands are being damaged by vandalism, illegal bikers and flytipping.
Areas designated as Sites of Special Scientific Interest, due to the presence of rare wildlife and plants, are being used as dumping grounds and unofficial bike tracks, according to English Nature. The organisation's Herefordshire and Worcestershire team is so concerned it has met police officers in an attempt to tackle what is happening.
Illegal off-road biking has become a regular occurrence at some sites and fly-tipped rubbish is also a problem at places such as Hartlebury Common in Worcestershire.
In one incident, cattle had to be removed from a site in Kidderminster after youths deliberately frightened them.
The animals have since returned to the site and local rangers and police are working to ensure they will be able to continue grazing.
John Bingham, conservation officer for English Heritage, said: "We have been trying to work with local police at the Devil's Spittleful SSSI near Kidderminster, where we have a problem with quad bikes, off-road bikes, and the dumping of rubbish.
"Motorbikes have churned up the ground, destroying heathland, plants and cattle grazing the site have had to be removed to protect them from deliberate panicking by the bikes, firework attacks and cut fences."
Craig Fellowes, environmental crime officer for Warwickshire Police, said: "Both English Nature and the police have an active role to play in species and habitat protection and a greater understanding of how we both work, and our mutual priorities, has to be a key part to that partnership."