Byrkjedal, I., Kyllingstad, K., Efteland, S., & Grøsfjell, S. (2012). Population trends of Northern Lapwing, Eurasian Curlew and Eurasian Oystercatcher over 15 years in a southwest Norwegian farmland. Ornis Norvegica, 35, 16–22. https://doi.org/10.15845/on.v35i0.238