Bat Behavior in Relation to Wind Turbines: Attraction Hypotheses and Avoidance Behaviors

Several studies have documented bats exhibiting either attraction or avoidance behaviors near wind farms or wind turbines. In some cases, bats frequently approach wind turbines, possibly to investigate structures such as the tower or blades. While multiple hypotheses exist based on behaviors such as foraging, roosting, or mating, no single explanation fits all species or conditions. Environmental factors like prey availability, habitat type, and wind conditions also shape behavioral responses. For example, the common noctules (Nyctalus noctula) and hoary bat (Lasiurus cinereus) may perceive turbines as potential roosting sites, foraging areas, or locations for mating or other social interactions, increasing collision risk. In contrast, several species of Myotis and the brown long-eared bat (Plecotus auritus) may avoid wind turbines because of habitat changes or operational noise. Understanding these patterns is vital for developing mitigation strategies that support both bat conservation and renewable energy goals.