Weights of the crop contents of Tetrao urogallus, Lyrurus tetrix, Tetrastes bonasia and Lagopus lagopus in Finnish Lapland in autumn and winter

Pulliainen, E. (1981). Weights of the crop contents of Tetrao urogallus, Lyrurus tetrix, Tetrastes bonasia and Lagopus lagopus in Finnish Lapland in autumn and winter. Ornis Fennica, 58(2), 64–71. Noudettu osoitteesta https://ornisfennica.journal.fi/article/view/133063