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Rediscovery, taxonomy and conservation of the Anjouan Scops Owl Otus capnodes (Gurney 1889)

Published online by Cambridge University Press:  11 May 2010

Roger J. Safford
Roger J. Safford
Affiliation:
16 Berwyn Road, Richmond, Surrey TW10 5BS, U.K.
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The Anjouan Scops Owl Otus capnodes, not recorded with certainty since about 1886, was rediscovered in June 1992. It has usually been treated as a race of Madagascar Scops Owl Otus rutilus but, judging from plumage and especially voice, it is a distinct species. It is found only in the remaining patches of upland forest (above 800 m) on Anjouan (Ndzuani), Comoro Islands, where the population is estimated to be at least several tens of pairs, probably between 100 and 200 pairs. The species is highly endangered by accelerating forest clearance and capture for food by the huge and increasing human population. Long-term environmental programmes are essential but may be too late to save this and other endangered species on Anjouan. Species-specific actions are needed: for the owl, a translocation to the neighbouring island of Moheli should be investigated.

La chouette Scops d'Anjouan Otus capnodes, qui n'avait pas été observée avec certitude depuis environ 1886, a été redécouverte en juin 1992. Elle était habituellement considérée comme appartenant à la race des chouettes Scops de Madagascar Otus rutilus, mais à en juger par son plumage et surtout par sa voix, c'est une espèce différente. Elle n'existe que dans les restants de forêts d'altitude (plus de 800 mètres) en Anjouan (Ndzuani), dans les lles Comores, où la population est estimée à au moins plusieurs dizaines de couples, probablement entre 100 et 200 paires. L'espèce est fortement menacée par l'accélération de la déforestation et la capture de ces oiseaux pour l'alimentation d'une population humaine très nombreuse et croissante. Des programmes de conservation de l'environnement à long terme sont essentiels, mais arriveront peut-être déjà trop tard pour sauver cette espèce et d'autres espèces menacées en Anjouan. Des actions spécifiquement centrées sur chaque espèce sont nécessaires: pour la chouette, la possibilité d'un transfert sur l'île voisine de Mohéli devrait être examinée.

Type
Research Article
Information
Bird Conservation International , Volume 3 , Issue 1 , March 1993 , pp. 57 - 74
Copyright
Copyright © Birdlife International 1993

References

Benson, C. W. (1960) The birds of the Comoro islands: results of the BOU centenary expedition 1958. Ibis 103B: 5–106.CrossRefGoogle Scholar
Benson, C. W., Colebrook-Robjent, J. F. R. and Williams, A. (1976) Contribution à 1'ornithologie de Madagascar. Oiseau et R.F.O. 46: 209–242. (English manuscript in ICBP library.)Google Scholar
Burton, J. A., ed. (1984) Owls of the world: their evolution, structure and ecology. Second edition. Glasgow: Peter Lowe/Collins.Google Scholar
Carroll, J. B. and Thorpe, I. C. (1991) Conservation of Livingstone's Fruit Bat. A report on an expedition to the Comores in 1990. Dodo 27: 26–40.Google Scholar
Clark, R. J., Smith, D. G. and Kelso, L. H. (1978) Working bibliography of owls of the world, with summaries of current taxonomy and distributional status. No. 1 of the National Wildlife Federation scientific/technical series. Washington D.C.: National Wildlife Federation.Google Scholar
Collins, N. M. and Morris, M. G. (1985) Threatened swallowtail butterflies of the world: the IUCN Red Data Book. Gland, Switzerland, and Cambridge U.K.: International Union for Conservation of Nature and Natural Resources.Google Scholar
Gurney, J. H. (1889) On an apparently undescribed species of owl from Anjouan Island, proposed to be called Scops capnodes. Ibis (6)1: 104–107.CrossRefGoogle Scholar
Harcourt, C. (1990) Lemurs of Madagascar and the Comoros: the IUCN Red Data Book. Gland, Switzerland, and Cambridge U.K.: International Union for Conservation of Nature and Natural Resources.Google Scholar
Herremans, M. (1988) Inter-island variation in bird vocalisations on the Comoros. Proc. VI P.A.O.C: 281–295.Google Scholar
Herremans, M., Louette, M. and Stevens, J. (1991) Conservation status and vocal and morphological description of the Grand Comoro Scops Owl Otus pauliani Benson 1960. Bird Consent. Internatn. 1: 123–134.CrossRefGoogle Scholar
Kemp, A. C. (1988) Strigidae, typical owls. Pp. 110–155 in Fry, C. H., Keith, S. and Urban, E. K., eds. The birds of Africa, 3. London: Academic Press.Google Scholar
König, C. (1991) Zur Taxonomie und Ökologie der Sperlingskäuse (Glaucidium) des Andenraumes. Ökol. Vögel 13: 15–76.Google Scholar
Louette, M. (1988a) Les oiseaux des Comores, Tervuren, Belgium: Musée Royal de I'Afrique Centrale (Ann. Sér. in -8, Sci. Zool. no. 255).Google Scholar
Louette, M. (1988b) Double invasions of birds on the Comoro islands. Proc. VI P.A.O.C.: 77–86.Google Scholar
Louette, M. and Stevens, J. (1992) Conserving the endemic birds on the Comoro islands,: I general considerations on survival prospects. Bird Conserv. Internatn. 2: 61–80.CrossRefGoogle Scholar
Marshall, J. T. (1978) Systematics of smaller Asian night birds based on voice. Orn. Monogr. 25.CrossRefGoogle Scholar
Marshall, J. T. and King, B. F. (1988) Genus Otus. Pp. 331–336 in Amadon, D. and Bull, J., eds. Hawks and owls of the world: a distributional and taxonomie list. Los Angeles: Western Foundation of Vertebrate Zoology.Google Scholar
Milne-Edwards, A. and Oustalet, E. (1888) Etudes sur les mammifères et les oiseaux des îles Comores. Nouv. Arch. Mus. Hist. Na., 2ième Sér. 10.Google Scholar
Oustalet, E. (1897) Notice sur la faune ornithologique ancienne et moderne des lies Mascareignes et en particulier de 1'Ile Maurice. Ann. Sci. Nat., Zoologie 8 (3): 1–128.Google Scholar
Pakenham, R. H. W. (1937) Otus pembaensis sp. nov. Bull. Brit. Orn. Club 57: 112–114.Google Scholar
Pakenham, R. H. W. (1979) The birds of Zanzibar and Pemba: an annotated check-list. London: British Ornithologists' Union (Check-list no. 2).Google Scholar
Peters, J. L. (1940) Check-list of birds of the world, 4. Cambridge, Mass.: Harvard University Press.Google Scholar
Safford, R. J. and Evans, M. I. (1991) Observations on the Comoro Islands. Appendix 4 in Thompson, P. M. and Evans, M. I., eds. A survey of Ambatovaky Special Reserve, Madagascar. London: Madagascar Environmental Research Group.Google Scholar
Sibley, C. G. and Monroe, B. L. (1990) Distribution and taxonomy of birds of the world. New Haven: Yale University Press.Google Scholar
Weightman, B. (1987) The crisis on Anjouan. Unpublished report to FAO.Google Scholar