In January 2015, a post-construction ornithological and chiropterological study was commenced on the farm site and continued in 2016. The observations did not reveal any negative impact of the facility on raptorial birds or white stork offspring leaving their nests. There was also no elevated mortality among birds or bats. In 2017, the Regional Directorate for Environmental Protection in Białystok (Department of Land Matters in Łomża), having examined the report for 2016, did not present any remarks on the proposed solutions regarding the monitoring in the subsequent years. In 2018, the last cycle of the study on the farm’s impact on bats and birds was carried out. The study did not show an elevated level of mortality in these groups of animals. The final report containing a summary of the 3-year monitoring exercise was presented to the environmental protection authorities in 2019. In June, the Regional Directorate for Environmental Protection in Białystok approved the post-construction analysis.
The Rajgród Wind Farm was commissioned in Q4 2014. In accordance with the decision on environmental conditions the post-construction noise study was carried out in December 2014. The measurements were performed by a certified subcontractor EKO-POMIAR. On the basis of the results, no breaches were identified, neither in the daytime nor in the nighttime. The results of the aforementioned noise analysis were submitted to competent authorities which did not make any comments.