The Surrey Wildlife Trust (SWT) grazes about 300 Belted Galloway cows on its conservation heathlands to clear coarse grass smothering insects and plants.
The Scottish Wildlife Trust (SWT), Scottish Natural Heritage (SNH), Forestry Commission Scotland (FCS), and the Scottish Rural Property and Business Association (SRPBA) are involved in the project.
The Scottish Wildlife Trust (SWT), along with the Tayside Beaver Study Group, has been monitoring the animal at the Loch of the Lowes since it was first spotted last summer.
South West Trains (SWT), which is operating a reduced service of two trains an hour to Portsmouth Harbour, said it shared passengers' frustration and was "pressurising Network Rail to complete the work as quickly as it can".