[1]
L. B. Jacobsen, P. Sunde, C. Rahbek, T. Dablesteen, and K. Thorup, “Territorial calls in the Little Owl (Athene noctua): spatial dispersion and social interplay of mates and neighbours”, Ornis Fenn, vol. 90, no. 1, pp. 41–49, Mar. 2013.