• [Wiki] http://en.wikipedia.org/wiki/Numida_meleagris.
• [AnAge] http://genomics.senescence.info/species/entry.php?species=Numida_meleagris.
• [avibase] https://avibase.bsc-eoc.org/species.jsp?lang=EN&avibaseid=1044B438EE7556BB&sec=lifehistory.
• [MartKirw2020] del Hoyo, J. and Kirwan, G. M. (2020). Helmeted Guineafowl (empn{Numida meleagris}), version 1.0. Cornell Lab of Ornithology, Ithaca, NY, USA. doi:10.2173/bow.helgui.01.
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