454 Marius Gilbert et al. Fig. 2. Movements of satellite-tracked wild waterfowl along the Central Asia ﬂyway, and in India and Bangladesh. a: Distribution of all satellite-tracked wild waterfowl along the Central Asia ﬂyways in 2009 color-coded by month (1 marks the region displayed in panel b, and 2 marks the Qinghai Lake region, China; credit to FAO–USGS Avian Inﬂuenza Program). b: Distribution of satellite-tracked wild waterfowl (open squares) and HPAI H5N1 virus outbreaks (open triangles) in northeastern India and Bangladesh in 2009, color-coded by month. Two points of coexistence of wild waterfowl and HPAI H5N1 outbreaks are indicated by the arrows, the black rectangle migrate from Bangladesh, and stayed only brieﬂy at the Qinghai Lake area of China. We summarized wild bird outbreaks reported in the OIE database from 2005–2009 in the region (Table S3; http://www.oie.int/downld/AVIAN%20INFLUENZA/A2009_ AI.php). The pattern of outbreaks was very similar in 2005 and 2009, spreading from southern poultry farming areas in South Asia to areas with little poultry in the northern Central Asia ﬂyway in China, Mongolia, and then Siberia. On July 27, 2009, an HPAI H5N1 wild bird outbreak was reported at Doroo Lake (Doroo nuur), a freshwater lake in (labeled as 3) marks the region displayed in panel c. c: Same as panel b, with different color coding (green, yellow, orange, red, brown, blue for March 1–4, 5–9, 10–14, 15–19, 20–24, 25–31, respectively). d: Movement recorded for a Ruddy Shelduck and two Bar-headed Geese from March to June 2009 (1 marks the region displayed in panel b, and 2 marks the Qinghai Lake region, China). Background color in panels b and c presents the distribution of HPAI H5N1 presence probability predicted by the South Asia Model, with the same legend as in Figure 1c and d. central Mongolia. Thirty birds including Bar-headed Geese, Ruddy Shelduck, Whooper Swan (Cynus cygnus), Common Goldeneye (Bucephala clangula), and Mongolian Gulls (Larus vegae mongolicus) were found sick or dead. Two of the mortalities included Bar-headed Geese captured and banded by our research team in July 2008 at Terkhiin Tsagaan Lake, located 150 km to the southwest. Samples were taken, analyzed, and compared to previous ones cir- culating in Asia (Kang et al., 2010; Sakoda et al., 2010), but unfortunately the comparison did not include any isolates from South Asia.