Raptors of the Izdrevaya River Basin, Russia

• Published in: Raptors Conservation
• Main Authors: Elvira G. Nikolenko, Dmitry A. Shtol, Igor V. Karyakin
• Format: Article in Journal/Newspaper
• Language: English; Russian
• Published: LLC Sibecocenter 2017
• Subjects: хищные птицы; пернатые хищники; чёрный коршун; Milvus migrans; канюк; Buteo buteo; длиннохвостая неясыть; Strix uralensis; Издревая; General. Including nature conservation; geographical distribution; QH1-199.5; Zoology; QL1-991; Ural Owl
• Online Access: https://doi.org/10.19074/1814-8654-2017-34-74-82; https://doaj.org/article/8258cb5efa2b4b4092e0d7a91a4fe651

This article compiles the results of episodic visits of the aurhoes to the basin of the Izdrevaya river during 2012–2016. The main goals of those visits were: to figure out the species composition of nesting fauna of birds of prey, estabishing the manner of nesting pairs’ distribution and designing a system of nestboxes for different species of birds of prey and owls. 8 species of Falconiformes are present in the Izdrevaya river basin, 4 of which are nesting, and 3 species of Strigiformes, 2 of which are nesting. The Black Kite (Milvus migrans) has maximum density in the Izdrevaya river basin – 51.83 ind./100km2 (n=93). The Common Buzzard (Buteo buteo) is the second in number after the Black Kite, its density being 8.88 ind/100km2 of the total area. The Ural Owl (Strix uralensis), encountered only on two territories in 2012, inhabited 4 nestboxes in 2013 as the result of biotechnical measures taken, and its number increased to 8 pairs successfully breeding in the nextboxes in 2016. Main negative factors for birds of prey in the Izdrevaya river basin were established: electrocution on power lines, illegal logging, illegal construction of dams and the construction of waste-sorting plant with a range of solid municipal waste.