The Department of Bioscience, Aarhus University was commissioned by the DanishNature Agency to undertake a bird monitoring programme of a national testcentre for wind turbines near Østerild in Thy, Denmark. Here we present the results from the first year of the post-construction studies. Whooper swan, taiga bean goose, pink-footed goose, common crane, light-bellied brent goose, white-tailed eagle and nightjar were included as focal species in the ornithological investigations. In addition, species specific data on all bird species occurring regularly in the study area were collected. On the basis of an intermediate assessment of collision risk, the potential impacts of the combined structures on the bird species occurring in the study area were considered unlikely to be significant. However, given the uncertainties in the assessment,  the post-construction programme will continue to investigate potential impacts on bats and birds.