This dataset includes ecological information recorded from within 18 birch woodlands surveyed in the Spey Valley, Scotland between 1971 and 1974. Data collected includes plant species composition in the canopy and ground flora, soil pH, habitat management and a wide range of other descriptors at a site level and in more detail from 16 - 40 200m2 sample plots located at random within the 18 woods. The survey was undertaken by the Nature Conservancy/Institute of Terrestrial Ecology.