Tachybaptus rufolavatus Delacour, 1932:2

Alaotra grebe, Delacour's grebe



Taxonomy & Nomenclature



Conservation Status


Last records: December 1982 (Butchart et al., 2018b); September 1985 ("Thompson, 1987" & Hawkins et al., 2000 fide Butchart et al., 2018b; Tyrberg, 2009:71 [as 1985]); 1986 (possibly hybrids) (Hawkins et al., 2000 fide Butchart et al., 2018b); 1988 (Thompson, et al. 2019); 1988 (unconfirmed) (Hawkins et al., 2000 fide Butchart et al., 2018b)

IUCN RedList status: Extinct





Biology & Ecology










Original scientific description:

Delacour, J. (1932). Les oiseaux de la mission zoologique Franco-anglo-américain à Madagascar. Oiseau et la Revue Française d'Ornithologie NS2(2): 1-96.


Other references:

BirdLife International (2000) Threatened Birds of the World. Lynx Edicions and BirdLife International, Barcelona and Cambridge.

BirdLife International. (2012). Tachybaptus rufolavatus. In: IUCN 2012. IUCN Red List of Threatened Species. Version 2012.1. ( Downloaded on 10 July 2012.

BirdLife International. (2016). Tachybaptus rufolavatus. The IUCN Red List of Threatened Species 2016: e.T22696558A93570744. Accessed on 30 June 2022.

Brook, Barry W., Buettel, Jessie C. and Jarić, Ivan. (Accepted). A fast re‐sampling method for using reliability ratings of sightings with extinction‐date estimators. Ecology. [Abstract]

Butchart, Stuart H. M., Lowe, Stephen, Martin, Rob W., Symes, Andy, Westrip, James R. S. and Wheatley, Hannah. (2018a). Which bird species have gone extinct? A novel quantitative classification approach. Biological Conservation 227: 9-18.

Butchart, Stuart H. M., Stattersfield, A. J. and Brooks, T. M. (2006). Going or gone: defining ‘Possibly Extinct’ species to give a truer picture of recent extinctions. Bulletin of the British Ornithologists' Club 126A: 7-24.

Butchart, Stuart H. M., Wheatley, Hannah, Lowe, Stephen, Westrip, James R. S., Symes, Andy and Martin, Rob W. (2018b). Data for: Which bird species have gone extinct? A novel quantitative classification approach. Mendeley Data, V1, doi: 10.17632/vvjhpmyxb4.1

Collar, N. J.; Stuart, S. N. 1985. Threatened birds of Africa and related islands: the ICBP/IUCN Red Data Book. International Council for Bird Preservation, and International Union for Conservation of Nature and Natural Resources, Cambridge, U.K.

Fuller, Errol. (2013). Lost Animals: Extinction and the Photographic Record. London: Bloomsbury Publishing.

Hawkins, F.; Andriamasimanana, R.; Sam The Seing; Rabeony, Z. (2000). The sad story of the Alaotra Grebe Tachybaptus rufolavatus. Bulletin of the African Bird Club 7(2): 115-117.

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.

Hume, Julian Pender and Walters, Michael. (2012). Extinct Birds. London: T & AD Poyser. 544 p.

Keith, D.A., Butchart, S. H. M., Regan, H. M., Harrison, I., Ackakaya, H. R., Solow, A. R. and Burgman, M. A. (2017). Inferring extinctions I: a structured method using information on threats. Biological Conservation 214: 320-327.

Knox, Alan G. and Walters, Michael P. (1994). Extinct and endangered birds in the collections of The Natural History Museum. British Ornithologists' Club Occasional Publications 1: 1-292.

Langrand, O. 1990. Guide to the birds of Madagascar. Yale University Press, New Haven, USA.

Milon, P. (1946). Observations sur quelques oiseaux de Madagascar. L'Oiseau et la Revue Française d'Ornithologie 16: 82-86.

Pidgeon, M. (1996). Summary: an ecological survey of Lake Alaotra and selected wetlands of central and eastern Madagascar in analysing the demise of Madagascar Pochard Aythya innotata. Working Group on Birds in the Madagascar Region Newsletter 6(2): 17-19.

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. [Supplementary Material (Data File S1)]

C.J. Thompson, V. Koshkina, M.A. Burgman, S.H. Butchart, L. Stone. (2017). Inferring extinctions II: a practical, iterative model based on records and surveys. Biol. Conserv., 214: 328-335.

Thompson, Colin J. et al. (2019). Bayesian updating to estimate extinction from sequential observation data. Biological Conservation 229: 26-29.

Tyrberg, Tommy. (2009). Holocene avian extinctions, pp. 63-106. In: Turvey, Samuel T. (ed.). Holocene Extinctions. Oxford, UK & New York, USA: Oxford University Press. xii + 352 pp.

Voous, K. H. and Payne, H. A. W. (1965). The grebes of Madagascar. Ardea 53: 9-31.

Wilmé, Lucienne. (1994). Status, distribution and conservation of two Madagascar bird species endemic to Lake Alaotra: Delacour's grebe Tachybaptus rufolavatus and Madagascar pochard Aythya innotata. Biological Conservation 69: 15-21.

ZICOMA. 1999. Zones d'Importance pour la Conservation des Oiseaux a Madagascar.


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