Sim, I. M. W., Green, M., Rebecca, G. W. & Burgess, M. D. (2015). Geolocators reveal new insights into Ring Ouzel Turdus torquatus migration routes and non-breeding areas. Bird Study 62: 561–565. doi: 10.1080/00063657.2015.1077779
PDF in ResearchGate.net
The first details of the migration pattern of a male Ring Ouzel Turdus torquatus, fitted with a geolocator on its Scottish breeding grounds, showed that it wintered in the Algerian Atlas Mountains, substantially east of the suspected main wintering area.
Ring Ouzel (Turdus torquatus – Merle à plastron – دج مطوق), Algeria, November 2015 (photo: Amine Djabari)
Median autumn stopover and wintering areas (ellipses) identified from geolocations from an ouzel tracked from Scotland, and recovery locations of British-ringed ouzels. Stopover and winter location ellipses represent the standard deviation of locations around the median point. British-breeding ouzels recovered in autumn (September–November: stars), winter (December–February: open circles) or spring (March–April: upward triangles) are shown alongside non British-breeding ouzels recovered during September–ovember (filled circles). http://dx.doi.org/10.1080/00063657.2015.1077779