Aggressive responses of two hole-nesting passerines, Parus major and Ficedula hypoleuca, to the play-back of sympatric species song

Järvi, T., Radesäter, T., & Jakobsson, S. (1978). Aggressive responses of two hole-nesting passerines, Parus major and Ficedula hypoleuca, to the play-back of sympatric species song. Ornis Fennica, 55(4), 154–157. Noudettu osoitteesta https://ornisfennica.journal.fi/article/view/132989