The Great spotted eagle Aquila clanga in the Altai Territory and Altai Republic, Russia

Aim. To summarise information provided so as to allow us to compile a modern understanding of the breeding ranges, abundance and breeding biology of the Great Spotted Eagle Aquila clanga, a rare species in the Altai Territory and the Altai Republic.

Material and Methods. While studying the distribution, abundance and nesting biology of the Great Spotted Eagle, we used generally accepted methods with certain modifications. The species was observed during foot and car surveys. To get an idea of the distribution of the spotted eagle in the region, an analysis of available sources was carried out, including materials from the Red Data Book of the Altai Territory and other relevant information resources.

Results. Nesting groups of a feathered predator are characterised by uneven spatial distribution. This is due to the habit of the spotted eagle to gravitate to wetlands and floodplain lands in high‐trunk mixed forests, alternating with meadow‐pasture and field landscapes. In ribbon and acquisition forests, as well as in wildlife sanctuaries located on their territory,  there  has  been  a  rapid  trend  towards  a  decrease  in  the population of the species, primarily due to selective felling of vegetation and disturbance of the birds during the nesting period. In this regar, there is a need to expand and deepen ornithological studies aimed at improving environmental measures for the Great Spotted Eagle.

Conclusions. Protection of this species should be combined with inevitable criminal or administrative punishment of poachers and illegal forest users, who are involved in destructive environmental activities in the region discussed.  Otherwise,  the  progressive  extinction  of  the  Great  Spotted Eagle population in Altai will reach a critical point in forthcoming years.

1. Vazhov V.M., Bakhtin R.F. To the study of Eastern imperial eagle in the Altai. Acta Biologica Sibirica, 2019, no. 5(3), pp. 1‐11. (In Russian) DOI: 10.14258/abs.v5.i3.6350

2. Baranov A.A. Ptitsy Altai‐Sayanskogo ekoregiona: prostranstvenno‐vremennaya dinamika bioraznoobraziya [Birds of the Altai‐Sayan ecoregion: spatial and temporal dynamics of biodiversity]. Krasnoyarsk, Krasnoyarsk State Pedagogical University Publ., 2012, vol. 1, 464 p. (In Russian).

3. Krasnaya kniga Respubliki Altai (zhivotnye) [Red Book of the Republic of Altai (Animals)]. Gorno‐Altaisk, 2017, 368 p. (In Russian)

4. Krasnaya kniga Kemerovskoi oblasti. Redkie i nakhodyashchiesya pod ugrozoi ischeznoveniya vidy zhivotnykh [Red Book of the Kemerovo region. Rare and endangered animal species]. Kemerovo, 2012, vol. 2, 192 p. (In Russian)

5. Krasnaya kniga Novosibirskoi oblasti: Zhivotnye, rasteniya i griby [Red Book of the Novosibirsk region: Animals, plants and fungi]. Novosibirsk, 2018, 588 p. (In Russian)

6. Krasnaya kniga Rossiiskoi Federatsii: Zhivotnye [Red Book of the Russian Federation: Animals]. Moscow, AST, Astril Publ., 2001, 60 p. (In Russian)

7. Kuchin A.P. Ptitsy Altaya [Birds of Altai]. Gorno‐Altaisk, 2004, 777 p. (In Russian)

8. Nikolenko E.G., Vazhov S.V. Encounters of rare raptors in the Altai Republic and Altai Territory in September 2009, Russia. Pernatye khishchniki i ikh okhrana [Raptors and their protection]. 2010, no. 18, pp. 153‐162. (In Russian)

9. Ebel A.L. On some faunistic and phenological observations of birds in the Altai Territory (Non‐passerines). Russkii ornitologicheskii zhurnal [Russian Ornithological Journal]. 2015, no. 24(1104), pp. 427‐450. (In Russian)

10. Vazhov S.V. Distribution and abundance of carnivorous birds (Falconiformes, Strigiformes) in the valley of the Bolshaya Rechka River (the "Bolsherechensky" State Reserve, the Altai Territory, Russia). Biosciences Biotechnology Research Asia. 2015, no. 12(2), pp. 1495‐1502. (In Russian)

11. Feldman A.S., Berezovikov N.N. Documented sighting of the Greater Spotted Eagle of the red‐breasted morph Aquila clanga var. fulvescens in the Semipalatinsk Priirtysh. [Russian Ornithological Journal]. 2015, no. 24(1204), pp. 3790‐3793. (In Russian)

12. Goncharov A.I., Dubikovsky D.V. To the ornithofauna of Altai Krai and the Altai Republic. Russkii ornitologicheskii zhurnal [Russian Ornithological Journal]. 2018, no. 27(1702), pp. 5851‐5865. (In Russian)

13. Ryabitsev V.K. Ptitsy Sibiri: spravochnik‐opredelitel' v dvukh tomakh [Birds of Siberia: a reference book in two volumes]. Moscow, Ekaterinburg, 2014, vol. 1, 438 p. (In Russian)

14. Vazhov S.V., Bakhtin R.F. [Great Spotted Eagle – Aquila clanga Pallas, 1811]. In: Krasnaya kniga Altaiskogo kraya. Redkie i nakhodyashchiesya pod ugrozoi ischeznoveniya vidy zhivotnykh [Red Data Book of Altai Krai. Rare and endangered animal species]. Barnaul, 2016, pp. 157‐159. (In Russian)

15. Vazhov S.V., Bakhtin R.F., Baidukov S.N. To the study of falconers and owls of Kislukhinsky preserve (Altai Territory). Altayskiy Zoologicheskiy Zhurnal [Altai Zoological Journal]. 2015, no. 9, pp. 59‐61. (In Russian)

16. Mitrofanov O.B. [Additional information about rare species of the Altai Republic]. In: Redkie zhivotnye Respubliki Altai: Materialy po podgotovke vtorogo izdaniya Krasnoi knigi Respubliki Altai [Rare animals of the Altai Republic: Materials for the preparation of the second edition of the Red Book of the Altai Republic]. Gorno‐Altaisk, RIO GAGN Publ., 2006, 166 p. (In Russian)

17. Vazhov S.V., Karyakin I.V., Barashkova A.N., Bakhtin R.F., Bekmansurov R.H., Nikolenko E.G., Smelyansky I.E. Rasprostranenie, chislennost' i status orlov v Respublike Altai [Distribution, abundance and status of eagles in the Altai Republic]. Ischezayushchie, redkie i slaboizuchennye vidy zhivotnykh i ikh otrazhenie v Krasnoi knige Respubliki Altai proshlykh i budushchego izdanii (kritika i predlozheniya): Materialy Vserossiiskoi nauch.‐prakt. konf. po podgotovke tret'ego izdaniya Krasnoi knigi Respubliki Altai (zhivotnye) [Extinct, rare and poorly studied animal species and their reflection in the Red Book of the Altai Republic of past and future editions (critique and proposals): Materials of the All‐ Russian scientific and practical conference on preparation of the third edition of the Red Book of the Republic of Altai (animals)]. Gorno‐Altaisk, 2015, pp. 88‐93. (In Russian)

18. Vazhov S.V., Mitrofanov O.B., Kuchin A.P. [Great Spotted Eagle ‐ Aquila clanga Pallas, 1811]. In: Krasnaya kniga Respubliki Altai (zhivotnye) [Red Data Book of the Republic of Altai (Animals)]. Gorno‐Altaisk, 2017, 167 p. (In Russian)

19. Karyakin I.V. Pernatye khishchniki (metodicheskie rekomendatsii po izucheniyu sokoloobraznykh i sovoobraznykh) [Feathered raptors (methodological recommendations for the study of falconers and owls)]. Nizhny Novgorod, Povolzhye Publ., 2004, 351 p. (In Russian)

20. Bibby C.J., Jones M., Marsden S. Expedition Field Techniques. Bird Surveys. London: Royal Geographical Society, 1998, 143 p. (In Russian)

21. Krasnaya kniga Altaiskogo kraya (Veb‐GIS «Faunistika») [Red Data Book of Altai Krai (WebGIS Faunistics)]. Available at: http://altayredbook.wildlifemonitoring.ru (accessed 01.12.2019)

22. Pernatye khishchniki Mira (Veb‐GIS «Faunistika») [Feathered raptors of the World (WebGIS "Faunistics")]. Available at: http://raptors.wildlifemonitoring.ru. (accessed 01.12.2019)

23. Ptitsy Sibiri [Birds of Siberia]. Available at: http://sibirds.ru (accessed 01.12.2019)

24. Toropov K.V., Grazhdan K.V. Ptitsy Severo‐Vostochnogo Altaya: 40 let spustya [Birds of the North‐Eastern Altai: 40 years later]. Novosibirsk, Nauka Publ., 2010, 396 p. (In Russian)

25. Toropov K.V., Bochkareva E.N. Ptitsy podtaezhnykh lesov Zapadnoi Sibiri: 30‐40 let spustya [Birds of subtaiga forests of Western Siberia: 30‐40 years of observations]. Novosibirsk, Nauka‐Center Publ., 2014, 394 p. (In Russian)

26. Karyakin I.V., Nikolenko E.G. Results of the project on the allocation of special protection zones in wildlife refuges of Altai Krai based on monitoring data of raptor nesting sites, Russia. Pernatye khishchniki i ikh okhrana [Raptors and their protection]. 2015, no. 31, pp. 75‐102. (In Russian)

27. Melnikov Y.I., Kupchinskiy A.B. New registrations of rare and small bird species on Lake Baikal. Baikalskiy Zoologicheskiy Zhurnal [Baikal Zoological Journal]. 2018, no. 2(23), pp. 46‐49. (In Russian)

28. Matsyura A.V., Zimaroeva A.A. Synanthropization of ravens and features of their adaptations to anthropogenic landscapes. Acta Biologica Sibirica. 2016, no. 2(1), pp. 150‐199. (In Russian)

29. Zvonov B.M., Boukreev S.A., Boldbaatar S. Ptitsy Mongolii. Chast' II. Nevorob'inye (Non‐Passeriformes) [Birds of Mongolia. Part II. Non‐Passeriformes]. Moscow, Agricultural Technologies Publ., 2017, 396 p. (In Russian)

30. Popov V.V. Kadastr pozvonochnykh zhivotnykh Irkutskoi oblasti ne otnosyashchikhsya k ob"ektam okhoty i vodnym biologicheskim resursam, obitavshikh na territorii Irkutskoi oblasti [Cadastre of vertebrate animals of the Irkutsk region not related to the objects of hunting and aquatic biological resources that inhabited the territory of the Irkutsk region]. Irkutsk, 2018, 98 p. (In Russian)

31. Tarasov V.V., Ryabitsev A.V. Results of monitoring of nesting sites of some rare birds in Kurgan region. Fauna Urala i Sibiri [Fauna of the Urals and Siberia]. 2018, no. 2, pp. 113‐119. (In Russian)

32. Kornev S.V., Korshikov L.V. On the Greater Spotted Eagle Aquila clanga in the Orenburg Region. Russkiy Ornitologicheskiy Zhurnal [Russian Ornithological Journal]. 2017, no. 26(1394), pp. 213‐214. (In Russian)

33. Kotlov A.A. To the distribution of rare birds in the southwest of Kulunda. Altaiskiy Zoologicheskiy Zhurnal [Altai Zoological Journal]. 2015, no. 9, pp. 69‐71. (In Russian)

34. Bakhtin R.F., Vazhov S.V. On encounters of rare birds of prey on Salair in 2013. Uspehi Sovremennoy Estestvennoy Nauki [Advances in Modern Natural Science]. 2014, no. 5(2), p. 190. (In Russian)

35. Karyakin I.V., Smelyansky I.E., Bakka S.V., Grabovsky M.A., Rybenko A.V., Egorova A.V. Large feathered raptors of Altai region. Pernatye khishchniki i ikh okhrana [Raptors and their protection]. 2005, no. 3, pp. 28‐51. (In Russian)

36. Bakhtin R.F., Vazhov S.V. New data on nesting of the Greater Spotted Eagle in the vicinity of Biysk, Altai Territory, Russia. Pernatye khishchniki i ikh okhrana [Raptors and their protection]. 2010, no. 20, pp. 204‐207. (In Russian)

37. Telegin V.I., Nikolaev V.V. Materials on the nesting of birds in Western Siberia. Altaiskiy Zoologicheskiy Zhurnal [Altai Zoological Journal]. 2010, no. 4, pp. 67‐77. (In Russian)

38. Ivanovsky V.V. Khishchnye ptitsy Belorusskogo Poozer'ya [Birds of prey of the Belarusian Lakeland]. Vitebsk, VGNN named after P.M. Masherov Publ., 2012, 209 p. (In Russian)

39. Ivanovsky V.V., Zakharova G.A. Using oological parameters to determine eggs of birds of prey. Russkii ornitologicheskii zhurnal [Russian Ornithological Journal]. 2014, no. 23(1058), pp. 3151‐3161. (In Russian)

40. Vazhov S.V., Vazhov V.M., Cheremisin A.A. Materials for the study of hawk birds of the Salair Ridge. Russkiy Ornitologicheskiy Zhurnal [Russian Ornithological Journal]. 2018, no. 27(1664), pp. 4393‐4403. (In Russian)

41. Tarasov V.V., Gashek V.A., Ryabitsev A.V., Grachev S.V. To the bird fauna of the forest‐steppe zone of the Chelyabinsk Region. Fauna Urala i Sibiri [Fauna of the Urals and Siberia]. 2018, no. 2, pp. 106‐112. (In Russian)

42. Dorzhiev Ts.Z., Badmaeva E.N. Non‐Passerifomes birds of the Republic of Buryatia: An annotated list. Priroda Srednуy Aziy [Nature of Inner Asia]. 2016, no. 1, pp. 7‐60. (In Russian)

43. Soloviev S.A. Birds of prey and owls of the Omsk Priirtyshye. Russkiy Ornitologicheskiy Zhurnal [Russian Ornithological Journal]. 2018, no. 27(1713), pp. 6260‐6268. (In Russian)

44. Krasnaya kniga Altaiskogo kraya. Redkie i nakhodyashchiesya pod ugrozoi ischeznoveniya vidy zhivotnykh [Red Data Book of Altai Krai. Rare and endangered animal species]. Barnaul, 2016, vol. 2, 312 p. (In Russian)