Lilleleht, V. (1987). Bird monitoring in Estonia: aims and results. Ornis Fennica, 64(1), 21. Hämtad från https://ornisfennica.journal.fi/article/view/133224
Ornis Fennica is a peer-reviewed international ornithological journal published by BirdLife Finland. We publish analytical and experimental papers on the ecology, behaviour and biogeography of birds. Ornis Fennica is published quarterly with online early practice.