we studied autumn migratory patterns of four north-west Russian Ospreys Pandion haliaetus from 2015 to 2017. No previous information has been published on migration of Russian Ospreys. the mean start date was August 26th and the mean journey distance was 6258km. Ospreys reached their final destinations (in eastern, central or south-western Africa) via Suez and Cyprus. we identified several stop-over areas along these routes. Ospreys mostly showed an intensive off-route displacement during their autumn migration, suggesting that they simultaneously explore areas while travelling. we observed high variability within individuals, which suggests that Ospreys continuously adjust their migratory behaviour according to different environmental cues and internal factors. however, the low repeatability may also suggest that each Osprey is consistent but that all of them change their behaviour in the same way. this is important because it means that the environment encountered along the migratory route may trigger the same response by all individuals.–Babushkin, M., kuznetsov, A. & Delgado, Ma.M. (2019). Autumn migratory patterns of north-west Russian ospreys Pandion haliaetus.Ardeola, 66: 119-128.
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Vol. 66 • No. 1