Comparison of winter diets of red deer and roe deer showed that the plant species in winter diets of these two animal species were primarily similar, but the percentage of each plant species was significantly different. Principal foods of red deer and roe deer were composed of 4 plant species (Po-pulus spp., Salix spp. and Tilia amurensis) and 3 plant species (Betula spp., Tilia amurensis and Populus spp.) respectively. Red deer had strong solectivities to ligneous plants compared with roe deer. A significa...