Gaede, A H, Gutierrez?Ibanez, C, Armstrong, M S, Altshuler, D L, Wylie, D R, "Pretectal projections to the oculomotor cerebellum in hummingbirds ( Calypte anna ), zebra finches ( Taeniopygia guttata ), and pigeons ( Columba livia )", Journal of Comparative Neurology, 2019