Red-knobbed imperial pigeon (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Red-knobbed imperial pigeon" in English language version.

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doi.org

BirdLife International (2021). "Ducula rubricera". IUCN Red List of Threatened Species. 2021: e.T22691680A195992763. doi:10.2305/IUCN.UK.2021-3.RLTS.T22691680A195992763.en. Retrieved 1 January 2022.
Callaghan, Corey T.; Kekeubata, Esau; Waneagea, Jackson; Alabai, Maasafi; Esau, Tommy; MacLaren, David; Major, Richard E. (2019-12-20). "A collaborative bird survey of East Kwaio, Malaita, Solomon Islands". Check List. 15 (6): 1119–1136. doi:10.15560/15.6.1119. ISSN 1809-127X.

Callaghan, Corey T.; Kekeubata, Esau; Waneagea, Jackson; Alabai, Maasafi; Esau, Tommy; MacLaren, David; Major, Richard E. (2019-12-20). "A collaborative bird survey of East Kwaio, Malaita, Solomon Islands". Check List. 15 (6): 1119–1136. doi:10.15560/15.6.1119. ISSN 1809-127X.