Owls have developed serrations, comb-like structures, along the leading edge of their\r<br />wings. Serrations were investigated from a morphological and a mechanical point of view,\r<br />but were not yet quantitatively compared for different species. Such a comparative investigation\r<br />of serrations from species of different sizes and activity patterns may provide new\r<br />information about the function of the serrations.
Weger, M., & Wagner, H. (2016). Morphological variations of leading-edge serrations in owls (Strigiformes). PLoS ONE, 11(3). https://doi.org/10.1371/journal.pone.0149236