The marine wildlife survey programme is being undertaken by Natural Research (Projects) Ltd and is designed to provide baseline characterisation data on seabirds, marine mammals and basking sharks occurring in the development search area and a surrounding buffer. This information will help inform the assessment of potential ecological impacts caused by the development on these taxonomic groups (i.e., EIA and HRA) that will be presented in the Environmental Statement for the project and inform any operational monitoring requirements. Survey work commenced in late March 2012 and this interim report covers survey work up to August 2012. This report covers the results of the visual boat‐based surveys undertaken at approximately monthly intervals. Passive Acoustic Monitoring surveys (PAMS) undertaken at the same time is the subject of a separate report (Wittich and Gordon 2012) which accompanies this report.