Megan Shersby: Eight bird species announced as extinct following new assessment. Experts recommend that the eight birds should be added to the list of extinct species. In: discoverwildlife.com (BBC Wildlife). 6. September 2018, abgerufen am 26. April 2022. Dort mit Verweis auf: Stuart H.M. Butchart, Stephen Lowe, Rob W. Martin, Andy Symes, James R.S. Westrip, Hannah Wheatley: Which bird species have gone extinct? A novel quantitative classification approach. In: Biological Conservation. Band227, November 2018, S.9–18, doi:10.1016/j.biocon.2018.08.014.
doi.org
Stuart H.M. Butchart, Stephen Lowe, Rob W. Martin, Andy Symes, James R.S. Westrip, Hannah Wheatley: Which bird species have gone extinct? A novel quantitative classification approach. In: Biological Conservation. Band227, November 2018, S.9–18, doi:10.1016/j.biocon.2018.08.014.
Megan Shersby: Eight bird species announced as extinct following new assessment. Experts recommend that the eight birds should be added to the list of extinct species. In: discoverwildlife.com (BBC Wildlife). 6. September 2018, abgerufen am 26. April 2022. Dort mit Verweis auf: Stuart H.M. Butchart, Stephen Lowe, Rob W. Martin, Andy Symes, James R.S. Westrip, Hannah Wheatley: Which bird species have gone extinct? A novel quantitative classification approach. In: Biological Conservation. Band227, November 2018, S.9–18, doi:10.1016/j.biocon.2018.08.014.
