The Siberian crane has a unique high-pitched voice and has the most specialised habitat requirements of any species of crane (7). The nest is a flat mound of grasses and sedges, which rises around 12 to 15 centimetres above the water level. Eggs are laid between May and mid-June, and although two eggs are usually produced just one chick is reared successfully. Whilst on the breeding grounds, the Siberian crane feeds on plants, roots, seeds, and berries (7). Some insects, small mammals, fish and frogs will also be eaten (7).