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Birds from the Far East in Central Europe: some side-notes to Pfeifer et al. (2007)

Author:
Hołyński, Roman B.
Source:
Journal für Ornithologie 2009 v.150 no.1 pp. 307-309
ISSN:
0021-8375
Subject:
Turdus, birds, migratory behavior, Central European region, East Asia, Europe, North America
Abstract:
The “reverse migration hypothesis” as the explanation for the vagrancy of Far Eastern birds in Europe is commented on. It is concluded that, as the postulated switch of 180° along a great circle line would lead the eastern or even central Siberian birds to North America rather than to Europe, the application of the “reverse migration hypothesis” to them seems untenable (which, however, does not preclude its plausibility in case of transatlantic, southern European, or even southwestern Siberian vagrants). On the other hand, patterns of appearance of the Turdus [naumanni] superspecies (Machalska et al. 1967) suggest the relationship of the phenomenon of vagrancy to post-breeding nomadic movements and/or periodical invasions of non-migrating species.
Agid:
277537