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Duckworth, G. D.; Altwegg, R.; Harebottle, D. M. (2011). “Demography and population ecology of the Hadeda Ibis (Bostrychia hagedash) at its expanding range edge in South Africa”. 《Journal of Ornithology》 153 (2): 421–430. doi:10.1007/s10336-011-0758-2. S2CID16769366.
Duckworth, G. D.; Altwegg, R. (2014). “Environmental drivers of an urban Hadeda Ibis population”. 《Ardea》 102 (1): 21–29. doi:10.5253/078.102.0104. S2CID84326289.
Singh, P.; Downs, C. T. (2016). “Hadedas in the hood: Hadeda Ibis activity in suburban neighbourhoods of Pietermaritzburg, KwaZulu-Natal, South Africa”. 《Urban Ecosystems》 19 (3): 1283–1293. doi:10.1007/s11252-016-0540-6. S2CID14574463.