Our Technical Director Carlos Abrahams conducting tree climbing bat survey
One of our key pieces of kit for carrying out a bat survey is our GoPro, which is a waterproof, HD-quality video recorder. Small and compact, we can attach this device to a helmet or pole to film footage from the top of trees, inside of lofts and many other locations.
This video shows our Technical Director Carlos Abrahams assessing a tree for its potential to support bat roosts and searching for evidence of roosting bats. It demonstrates the climbing ability and strength our ecologists need for this type of survey!
Tree climbing surveys are conducted by our CS38 qualified tree-climber and licensed bat-worker ecologists. Firstly, a daytime visit will be made to the site to identify trees within the work areas which appear to have roost potential and will require a tree climbing bat survey. Following this ground-based assessment, a tree climbing bat survey, as Carlos carries out in the video, will be carried out for all trees with moderate or high roost potential.
As part of this bat survey, any suitable cavities should be fully inspected using an endoscope. Where this is not possible, then an additional bat survey (such as an emergence survey) might be needed. A survey report will be produced to detail the ground-based, treeclimb and emergence (where required) study methodologies and results, providing an initial assessment of potential impacts and making recommendations for any necessary further survey work and/or mitigation measures.