Volke, U., Vahter, I. & Volke, V.
Nest site selection of Great Spotted Woodpecker (Dendrocopos major) in Saaremaa.
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Mägi, M.
Men estimate the size of the bird flocks more precisely than women
Ellermaa, M., Pettay, T. & Könönen, J.
Water birds stopping in Põõsaspea in autumn 2009
Laansalu, A. & Laansalu A.-K.
Prey items in some Tawny Owl Strix aluco nests in 2009
Aua, J.
Birds of Kamariku quarry
Notes (in Estonian)