Tiainen, J., Hanski, I. K., Pakkala, T., Piiroinen, J., & Yrjöla, R. (1989). Clutch size, nestling growth and nestling mortality of the Starling Sturnus vulgaris in south Finnish agroenvironments. Ornis Fennica, 66(1), 41–48. Retrieved from https://ornisfennica.journal.fi/article/view/133275