Sirkiä, S., Helle, P., Lindén, H., Nikula, A., Norrdahl, K., Suorsa, P. and Valkeajärvi, P. (2011) “Persistence of Capercaillie (Tetrao urogallus) lekking areas depends on forest cover and fine-grain fragmentation of boreal forest landscapes”, Ornis Fennica, 88(1), pp. 14–29. doi: 10.51812/of.133759.