Sirkiä, S., Nikula, A., Helle, P., Lindén, H., Norrdahl, K., Suorsa, P. and Valkeajärvi, P. (2011) “Contemporary mature forest cover does not explain the persistence of Capercaillie (Tetrao urogallus) lekking areas in Finland”, Ornis Fennica, 88(4), pp. 208–216. doi: 10.51812/of.133784.