Rose, Sanjo, et al. “How Far and How Old: Longevity and Displacement Records from the South African Bird Ringing Scheme for Ardeidae, Threskiornithidae and Ciconiidae ”. Bothalia, African Biodiversity & Conservation, vol. 49, no. 1, Jan. 2019, https://abcjournal.org/index.php/BothaliaABC/article/view/5.