• [Wiki] http://en.wikipedia.org/wiki/Copsychus_saularis.
• [bow] https://birdsoftheworld.org/bow/species/magrob/cur/introduction.
• [avibase] https://avibase.bsc-eoc.org/species.jsp?lang=EN&avibaseid=D112C938D2650926&sec=lifehistory.
• [GavrGolu2023] Gavrilov, V. M., Golubeva, T. B., and Bushuev, A. V. (2013). Metabolic rate, sleep duration, and body temperature in evolution of mammals and birds: the influence of geological time of principal groups divergence. ZooKeys, 1148:1--27. doi:10.3897/zookeys.1148.93458.
• [Kooy2010] Kooijman, S. (2010). Dynamic Energy Budget theory for metabolic organisation. Cambridge Univ. Press, Cambridge.