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Juvenile kite bird11/14/2023 ![]() Black Kites crossing the Himalayas fly and, moreover, stay for hours resting at night in the environment of mountains at altitudes over 5000 m. We found that ontogenetic shifts in migratory behaviour of Black Kites from Eastern Russia differ from those in population/subspecies in Europe. During the breeding period, birds dwelled in south-western Siberia, where they spent on average 125 days with an average home range size 3537 km 2. Birds wintered on average for 190 days, and the mean area of individual home ranges in winter was 4704 km 2. Black Kites from both subpopulations wintered in low elevations of Pakistan and India. Timing of both spring and autumn migration did not vary along different age groups. The average total distance travelled of Black Kites from both subpopulations was 9166 km without any significant differences between these subpopulations. Black Kites originating from Kosh-Agach used the Trans-Himalayan Corridor crossing the Himalayas in altitudes of up to 6256 m asl. Black Kites originating from Biysk migrated through the Western Circum-Himalayan Corridor. ![]() After fledging, Black Kites from both subpopulations stayed in a small, non-overlapping areas and then migrated to southern Asia through narrow corridors. We tagged with GPS/SMS/GPRS telemetry loggers 13 and 6 Black Kite pulli in lowland around Biysk (Altai Krai, Russia) and in mountains around Kosh-Agach (Altai Republic, Russia), respectively. Using satellite telemetry we are able to fill this gap in our knowledge of these birds. migrans from Europe to Sub-Saharan Africa and the Middle East are well known, detailed information about migration routes of Black Kites from intergradation zone are missing. There is a large intergradation zone of M. The Palaearctic is populated by two migrating subspecies, Milvus migrans migrans and Milvus migrans lineatus, in the western and eastern part of this realm, respectively. The Black Kite ( Milvus migrans) is one of the most widespread raptors in the world.
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