This is why we carry out bat surveys on trees. An aerial tree assessment inspects potential features that have been identified from the ground. This involves climbing to the feature and inspecting the feature with the aid of an endoscope. Check out the video below to see what we found in this tree. You will see why trees should be assessed by a bat licenced ecologist before being worked on or felled. Recklessly Injuring, killing or disturbing a roosting bat is an offence; we need to protect our wildlife.