In order to comply with a FEPA licence granted for the construction of the Burbo Bank Offshore Wind Farm, a series of boat based ornithology surveys were undertaken at approximately monthly intervals between May 2006 and the end of July 2007 at the site of Burbo Bank Offshore Wind Farm. The aim of the surveys was to monitor the effects of the construction phase of the Scheme, and to follow-on from a pre-construction monitoring program (September 2005 to April 20061). The survey methodology followed that utilised in the pre-construction studies, where ornithologists recorded bird observations along seven transect routes. In general, the survey area holds few bird species, and those that do occur are present in low numbers. Construction period survey results were similar to those from pre-construction surveys. Given these low numbers, it was not possible to determine any difference in abundance and distribution between construction and pre-construction periods for the wind farm area, the buffer area and the reference area; the notable exception being cormorant Phalacrocorax carbo, which regularly used the recently built wind turbines as roosting sites and therefore records increased within the wind farm area.