1.
Dale S. Relative magnitude of two Northern Hawk-Owl (Surnia ulula) irruptions to southern Norway: comparison of citizen data and survey data. Ornis Norv. [Internet]. 2022 Jan. 18 [cited 2024 Apr. 24];45:1-9. Available from: https://boap.uib.no/index.php/ornis/article/view/3425