Peter Shurulinkov
https://orcid.org/0000-0002-6586-8690; Girgina Daskalova; Konstantin Popov; Svetla Dalakchieva; Rossen Tzonev
https://orcid.org/0000-0001-8112-1354; Ivaylo Dimchev; Andrey Ralev
9 April 2020 ·
volume 41 · [
issue 6] · pp. 41–49 ·
PDF [full text]
Abstract: The ruddy shelduck (Tadorna ferruginea) is a species of great conservation importance within its European breeding grounds. Tadorna ferruginea is included in the Red Data Book of Bulgaria (2015) in the category “Critically Endangered”. The species is qualified as “Near Threatened” in EU27 countries as a whole. Recent data from the Balkan parts of the species range indicate its considerable enlargement. During the last 10-year period, the presence status of the ruddy shelduck during winter changed from incidentally wintering in low numbers to regular and even locally abundant wintering species. The numbers of T. ferruginea migrating over the Eastern Balkans increased substantially, especially during autumn. The reasons of these expansion of the species are discussed.
Keywords: Balkan Peninsula, distribution, migration, population increase, ruddy shelduck, winter numbers
References [25]
Banik M. 2014 Expansion of Ruddy Shelduck (Tadorna ferruginea) in Kharkiv region in 1990–2010 and its possible causes. Birds of Severskovo Dontsa Basin 12: 184–200.
Bauer W., Helversen O., Hodge M., Martens J. 1969 Catalogus Faunae Graeciae. Thessaloniki, 182 pp.
BirdLife International 2004 Birds in Europe: population estimates, trends and conservation status. BirdLife International, Cambridge, UK, 374 pp.
BirdLife International 2015 European Red list assessment. Ruddy Shelduck (Tadorna ferruginea Pallas, 1764).
Boev Z. 1983 Observations on the birds of the northern part of the Devetashko Plateau. Ornitologiceski Informacionen Bulletin 13/14: 31–36. (In Bulgarian)
Botev B., Peshev T. (eds) 1985 Red Data Book of People’s Republic of Bulgaria. Vol. 2 Animals. BAS, 183 pp. (In Bulgarian)
Cramp S., Simmons K.E. (eds) 1977 The Birds of the Western Palearctic. Vol. I. Oxford University Press, 722 pp.
Daskalova G., Shurulinkov P., Angelov I., Petrov P. In print The Birds of Tundzha River Valley.
Dimitrov M., Michev T., Profirov L., Nyagolov K. 2005 Waterbirds of Bourgas wetlands. Results and evaluation of the monthly monitoring 1996–2002. Pensoft Publishers, Bulgarian Biodiversity Foundation, 159 pp.
Hagemejer E., Blair M. (eds) 1997 The EBCC Atlas of European Breeding Birds: Their Distribution and Abundance. T & A Poyser, London, 903 pp.
Handrinos G., Akriotis T. 1997 The Birds of Greece. Christopher Helm, A & C Black, London, 336 pp.
Heath M., Evans M. (eds) 2000 Important bird areas in Europe. Priority sites for conservation. Vol. 2. Southern Europe. Birdlife International Conservation Series, Cambrigde, UK, 791 pp.
Hue F., Etchecopar R. 1970 Les oiseaux du Proche et du Moyen Orient. Paris, 948 pp.
Ilieva M., Zehtindjiev P., Kutsarov Y., Georgiev D. 2007 Ruddy Shelduck (Tadorna ferruginea). In: Iankov P. (ed.). Atlas of Breeding Birds in Bulgaria. Bulgarian Society for the Protection of Birds, Conservation Series, Book 10, Sofia, 94–95.
Kostadinova I. (ed.) 1997 Important Bird Areas in Bulgaria. BSPB, Conservation Series, Book 1, Sofia, 176 pp.
Krivenko V., Vinogradov V. 2003 Present status of the waterfowl resources in Russia and problems of their protection. Wetlands International, Moscow.
Michev T., Profirov L. 2003 Mid-winter numbers of Waterbirds in Bulgaria: Results from 25 Years of Mid-winter Counts Carried Out at the Most Important Bulgarian Wetlands (1977–2001). Pensoft, Sofia, 167 pp.
Nankinov D., Dutsov A., Nikolov B., Borisov B., Stoyanov G., Gradev G., Georgiev D., Popov D., Domuschiev D., Kirov D., Tilova E., Nikolov I., Ivanov I., Dichev K., Popov K., Karaivanov N., Todorov N., Shurulinkov P., Stanchev R., Aleksov R., Tzonev R., Ivanov S., Marin S., Staikov S., Nikolov S., Dalakchieva S., Nikolov H. 2004 Breeding totals of the ornithofauna in Bulgaria. Green Balkans, Plovdiv, 32 pp.
Nankinov D., Simeonov S., Michev T., Ivanov B. 1997 The Fauna of Bulgaria. Vol. 26. Aves. Part 2. Publ. Houses Marin Drinov and Pensoft, 427 pp.
Shurulinkov P., Cheshmedzhiev S., Daskalova G., Dinkov H., Kirov K., Hristov I., Kutsarov Y., Koev V., Mihov S. 2019 Recent data on the distribution and numbers of the water birds in the wetlands along the Bulgarian-Romanian section of the Danube River. In: Shurulinkov P. et al. (eds) Biodiversity of the Bulgarian-Romanian section of the Lower Danube. Nova Publishers, New York, 341–374.
Staneva A., Burfield I. (eds) 2015 European Birds of Conservation Concern.
Vasiliu G.D. 1968 Systema Avium Romaniae. Alauda (suppl.) Paris, 120 pp.
Vetrov V., Litvinenko S. 2014 Actual status of the Ruddy Shelduck (Tadorna ferruginea) in Lugansk region. Birds of Severskovo Dontsa Basin 12: 159–169.
Zehtindjiev P., Bogdanova M., Bedev K. 2015 Ruddy Shelduck (Tadorna ferruginea). In: Golemansky et al. (eds) Red Data Book of the Republic of Bulgaria. Vol. 2 Animals. BAS & MOEW, Sofia, p. 73.
Zubko N., Havrilenko V., Semenov N. 2001 Restoration of the Ruddy Shelduck Tadorna ferruginea population in “Ascania Nova” nature reserve (Southern Ukraine). Acta Ornithologica 36 (1): 97–100.