T. Yu. Khokhlovaa and M. V. Yakovlevab
aInstitute of Biology, Karelian Scientific Center, Russian Academy of Sciences,
ul. Pushkinskaya 11, Petrozavodsk, Karelia, 185910 Russia;
e-mail: Hokhlova@karelia.ru
bKivach State Nature Reserve, Kondopozhskii raion, Karelia, 186220 Russia
Received June 2, 2008
Abstract—The placement of 1918 redwing nests has been analyzed, including 214 nests of 90 marked females
(2–8 known nests per female). A high level of intraspecific and individual variation in utilization of different
types of nest supports is described. It is shown that redwings choose nest sites without regard to previous expe-
rience (either positive or negative) or to the placement of their parent nest. Under conditions of the northern
taiga, such behavior provides for significant reduction of chick mortality by the end of the season. This is con-
firmed by comparison with the song thrush (T. philomelos), which nests mainly on spruce trees.
DOI: 10.1134/S1067413609020088
Key words: redwing, ecology, adaptation to northern conditions, nest-building behavior, individual variation.
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