Climate variation and regional gradients in population dynamics of two hole-nesting passerines

B-E. Saether, S. Engen, A.P. Møller, E. Matthysen, F. Adriaensen, W. Fiedler, A. Leivits, M.M. Lambrechts, M.E. Visser, T. Anker-Nilssen, C. Both, A.A. Dhondt, R. McCleery, J. McMeeking, J. Potti, O.W. Røstad, D.L. Thomson