Pulliainen, E., Eskonen, H. and Hietajärvi, T. (1981) “Note on the breeding of the Ring Ouzel Turdus torquatus in Finnish Lapland”, Ornis Fennica, 58(4), pp. 175–176. Available at: https://ornisfennica.journal.fi/article/view/133081 (Accessed: 23November2024).