Rafał Bobrek, Jakub Hasny, Joanna Kajzer-Bonk, Maciej Wayda, Sławomir Springer, Agata Żmuda
Ornis Polonica 2016, 57: 39–57
https://doi.org/10.12657/ornis.2016.1.3
Abstract: Autumn migration of passerines was studied basing on daily catches at the Rakutowskie Lake (central Poland) in 2010–2012. Among captured birds, the most abundant were long-distance migrants, which formed main migration peak. Less numerous partial and short-distance migrants created the second, later peak. The most abundant species showed either high (e.g. Reed Warbler Acrocephalus scirpaceus and Sedge Warbler A. schoenobaenus) or low (e.g. Barn Swallow Hirundo rustica and Long-tailed Tit Aegithalos caudatus) inter-seasonal migration dynamics repeatability. Among species representing three main migration strategies: long-distance, short-distance and partial migrants, we observed a distinctive similarity in migration curve shapes. This was manifested by the convergent course of dynamics curves and similar timing of migration waves, when comparing many pairs of species. In Reed and Sedge Warblers, which were characterized by the highest repeatability of migration, we found higher similarity of migration curves between the species in one season than within species in two consecutive seasons. This suggests mainly exogenous (e.g. weather-related) rather than endogenous control of migration timing.
Keywords: bird banding, bird ringing, migration strategy, migration waves
