Aegolius gradyi Olson, 2012
Bermuda saw-whet owl
Taxonomy & Nomenclature
Conservation Status
Extinct
Last record: Holocene (1600's?); 1623 (Kittelberger et al., 2024)
IUCN RedList status: Extinct
Distribution & Habitat
Bermuda
Biology & Ecology
Hypodigm
Media
References
Original scientific description:
Olson, Storrs L. (2012). A new species of small owl of the genus Aegolius (Aves: Strigidae) from Quaternary deposits on Bermuda. Proceedings of the Biological Society of Washington 125(2): 97-105. [Abstract]
Other references:
BirdLife International. (2014). Aegolius gradyi. The IUCN Red List of Threatened Species. Version 2014.2. (http://www.iucnredlist.org). Downloaded on 26 July 2014.
BirdLife International. (2016). Aegolius gradyi. The IUCN Red List of Threatened Species 2016: e.T62184893A95192681. https://dx.doi.org/10.2305/IUCN.UK.2016-3.RLTS.T62184893A95192681.en. Accessed on 02 July 2022.
del Hoyo, J., Collar, N. J., Christie, D. A., Elliott, A. and Fishpool, L. D. C. (2014). HBW and BirdLife International Illustrated Checklist of the Birds of the World. Volume 1: Non-passerines. Lynx Edicions BirdLife International, Barcelona, Spain and Cambridge, UK.
Faurby, Søren, Matthews, Tom J., Triantis, Kostas A. and Sayol, Ferran. (2026). Quantifying the unrecorded loss of avian phylogenetic diversity. Ecography 2026: e08267. https://doi.org/10.1002/ecog.08267
Kittelberger, Kyle D., Tanner, Colby J., Buxton, Amy N., Prewett, Amira and Şekercioğlu, Çağan Hakkı. (2024). Correlates of avian extinction timing around the world since 1500 CE. Avian Research 15: 100213. https://doi.org/10.1016/j.avrs.2024.100213 [Supplementary data (List of 216 taxa)]
Matthews, Thomas J., Triantis, Kostas A., Wayman, Joseph P., Martin, Thomas E., Hume, Julian P., Cardoso, Pedro, Faurby, Søren, Mendenhall, Chase D., Dufour, Paul, Rigal, François, Cooke, Rob, Whittaker, Robert J., Pigot, Alex L., Thébaud, Christophe, Jørgensen, Maria Wagner, Benavides, Eva, Soares, Filipa C., Ulrich, Werner, Kubota, Yasuhiro, Sadler, Jon P., Tobias, Joseph A. and Sayol, Ferran. (2024). The global loss of avian functional and phylogenetic diversity from anthropogenic extinctions. Science 386(6717): 55-60. https://doi.org/10.1126/science.adk7898 [Supplementary Materials; Dryad dataset; Zenodo codeset]
Matthews, Thomas J., Wayman, Joseph P., Cardoso, Pedro, Sayol, Ferran, Hume, Julian P., Ulrich, Werner, Tobias, Joseph A., Soares, Filipa C., Thébaud, Christophe, Martin, Thomas E. and Triantis, Kostas A. (2022). Threatened and extinct island endemic birds of the world: Distribution, threats and functional diversity. Journal of Biogeography 49(11): 1920-1940. https://doi.org/10.1111/jbi.14474 [Appendix S1 (.docx); Appendix S2 (.pdf)]
Sayol, Ferran, Steinbauer, Manuel J., Blackburn, Tim M., Antonelli, Alexandre and Faurby, Søren. (2020). Anthropogenic extinctions conceal widespread evolution of flightlessness in birds. Science Advances 6(49): eabb6095. https://doi.org/10.1126/sciadv.abb6095 [Supplementary Material (Data File S1)]