The project focuses on four target taxa: birds, bats, small mammals and insects that produce ultrasound. Two of these taxa, birds and bats have been chosen as key indicators in the Rewilding Monitoring Framework. We also test the use of two soundscape indices, as another key indicator in the Monitoring Framework. In total, this study identified 90 species in Heal including 40 bird species, 15 bat species, six small mammal species, six bush-cricket species, and one moth species