Soikkeli, M. (1976). Bird surveys by amateur ornithologists in Finland. Ornis Fennica, 53(4), 140–141. Hämtad från https://ornisfennica.journal.fi/article/view/132917
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.