Many woods, especially ancient woodland, are likely to contain unrecorded features. Examples may include old dykes, particularly enclosure dykes, charcoal hearths or evidence of abandoned rig and furrow.
Scotland’s Woodlands and the Historic Environment provides a very useful overview of woodland and archaeology.
The Archaeology Scotland website - Identifying and Managing Archaeology has an abundance of material on managing archaeological sites.
Grazing and the historic environment has detailed guidelines on woodland grazing and its potential impact on historical features, including veteran trees.
Identifying archaeological sites in woodlands
Typically archaeological features within woodlands are fairly robust, yet it would be possible to damage them through an inappropriate grazing regime or from associated operations such as fence erection. To avoid damage, you will need to be aware of their existence.
For a guide to identifying archaeological sites in woodlands, see Identifying the Historic Environment in Scotland's Forests and Woodlands.