A Novel Form of Behavioral Camouflage in Colubrid Snakes
William G. Ryerson
Copeia 105: 363–367
Supplementary video 1: A small Thamnophis sirtalis exhibiting the head-wobble behavior as it moves through dry grass. Note the movement of the grass in the wind.
Supplementary video 2: An individual Opheodrys vernalis performing a head-wobble crossing a hiking trail. Individual was pursued by the author from a grassy area onto the trail.
Supplementary video 3: The same individual Opheodrys vernalis from Supplementary video 2, continuing to head-wobble even after capture by hand. Note the shrubbery moving with the wind in the background of the video.