Specific Features of Annual Cycles in Long-Distance Migrant
Birds Living at the Range Boundary: The Example
of the Wood Warbler, Phylloscopus sibilatrix,
in the Taiga Zone of Northwestern Russia

N. V. Lapshin

Institute of Biology, Karelian Research Center, Russian Academy of Sciences,

ul. Pushkinskaya 11, Petrozavodsk, 185910 Karelia, Russia;

e-mail: lapshin@krc.karelia.ru

Received April 20, 2007

Abstract—Annual cycle phenomena taking place in the nesting part of the range, such as dates of migration
and breeding and molting pattern, have been studied in the wood warbler in northwestern Russia, at the bound-
ary of its nesting range. The results provide evidence that the annual cycle of long-distance migrant birds living
at the boundary of their nesting range has certain specific features.

DOI: 10.1134/S1067413609030096

Key words: long-distance migrant birds, wood warbler, annual cycle, range boundary.


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