Wikispecies has information related to Harpactes duvaucelii.
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^BirdLife International (2016). "Harpactes duvaucelii". IUCN Red List of Threatened Species. 2016: e.T22682848A92964079. doi:10.2305/IUCN.UK.2016-3.RLTS.T22682848A92964079.en. Retrieved 11 November 2021.