SANIGA, Miroslav: Rock thrush (Monticola saxatilis) and Wallcreeper (Tichodroma muraria). In HAGEMEIJER, W.J.M. and BLAIR, M. (eds). The EBCC Atlas of European Breeding Birds. London: Poyser & Academic Press, 1997. ISBN 0-85661-091-7. p. 540, p. 651.