Molværsmyr, Sindre, and Anthony David Fox. 2020. “Using δ2H Stable Isotope Analysis to Identify the Origin of a First Winter Red-Breasted Goose Branta Ruficollis Caught in Norway”. Ornis Norvegica 43 (June):1-3. https://doi.org/10.15845/on.v43i0.2953.