Electronic Supplementary Material

Table S1 Detailed information of sampling locations in this study.

Sampling site number / Country / Locality / Subspecies / Sample size / Latitude (N) / Longitude (E) / Altitude (m) / Source
1 / Belgium / Knokke-Zwin / canorus / 1 / 51.36 / 3.34 / 5 / xeno-canto
2 / Belgium / East Flanders, Flemish Region / canorus / 1 / 51.04 / 3.92 / 10 / xeno-canto
3 / Belgium / Munte / canorus / 1 / 50.95 / 3.73 / 35 / xeno-canto
4 / Bulgaria / Strelcha, Pazardzik / canorus / 2 / 46.77 / 14.13 / 480 / xeno-canto
5 / Czech Republic / Havraníky, Southern Moravia / canorus / 1 / 48.81 / 16.01 / 300 / xeno-canto
6 / Denmark / Fairyhill / canorus / 1 / 56.08 / 12.52 / 35 / xeno-canto
7 / Denmark / Gedser / canorus / 1 / 54.58 / 11.94 / 4 / xeno-canto
8 / Denmark / GurreSø / canorus / 1 / 56.02 / 12.48 / 25 / xeno-canto
9 / Denmark / Porsemosen / canorus / 3 / 55.70 / 12.30 / 10 / xeno-canto
10 / Denmark / Saltholm / canorus / 1 / 55.65 / 12.77 / 1 / xeno-canto
11 / France / Divonne, Ain / canorus / 1 / 46.37 / 6.16 / 460 / xeno-canto
12 / France / Domaine du Rey, Lignairolles / canorus / 2 / 43.09 / 2.01 / 263 / xeno-canto
13 / France / Dombes Swamp / canorus / 1 / 45.91 / 5.06 / 280 / xeno-canto
14 / France / Seine-et-Marne, Île-de-France / canorus / 2 / 48.39 / 2.60 / 120 / xeno-canto
15 / France / Pougny, Ain / canorus / 1 / 46.13 / 5.94 / 340 / xeno-canto
16 / France / Moirans, Isere / canorus / 1 / 45.31 / 5.55 / 190 / xeno-canto
17 / France / Mouliere Forest / canorus / 2 / 46.66 / 0.47 / 100 / xeno-canto
18 / France / Pyrénées-Orientales, Languedoc-Roussillon / canorus / 1 / 42.89 / 2.85 / 300 / xeno-canto
19 / France / St-Christophe-en-Oisans / canorus / 1 / 44.90 / 6.18 / 1, 600 / xeno-canto
20 / France / Drome, Rhone-Alpes / canorus / 1 / 44.61 / 5.57 / 1, 200 / xeno-canto
21 / Georgia / Kakheti / canorus / 1 / 41.30 / 45.90 / 380 / xeno-canto
22 / Germany / Heide, Schleswig-Holstein / canorus / 1 / 54.17 / 9.13 / 0 / xeno-canto
23 / Germany / Augsburg, Siebentischwald I / canorus / 1 / 48.32 / 10.94 / 496 / xeno-canto
24 / Germany / Kr. Rendsburg-Eckernförde, Schleswig-Holstein / canorus / 1 / 54.05 / 9.82 / 10 / xeno-canto
25 / Germany / Dellstedter Moor / canorus / 2 / 54.25 / 9.35 / 0 / xeno-canto
26 / Germany / Dithmarschen, Schleswig-Holstein / canorus / 2 / 54.13 / 9.15 / 1 / xeno-canto
27 / Germany / Lampertheim, Hessen / canorus / 1 / 49.60 / 8.47 / 90 / xeno-canto
28 / Germany / Nuthetal-Beelitzer Sander, Brandenburg / canorus / 1 / 52.26 / 13.17 / 30 / xeno-canto
29 / Germany / Lampertheim, Hessen / canorus / 1 / 49.57 / 8.52 / 100 / xeno-canto
30 / India / Darjeeling, West Bengal / canorus / 1 / 27.09 / 88.66 / 2, 000 / xeno-canto
31 / Italy / Province of Vercelli, Piedmont / canorus / 1 / 45.22 / 8.18 / 150 / xeno-canto
32 / Italy / Province of Milan, Lombardy / canorus / 1 / 45.41 / 9.04 / 110 / xeno-canto
33 / Italy / Valpolicella, Verona, Veneto / canorus / 1 / 45.55 / 10.85 / 550 / xeno-canto
34 / Italy / Osa river, Orbetello / canorus / 1 / 42.56 / 11.19 / 20 / xeno-canto
35 / Italy / Brescia, Lombardy / canorus / 1 / 45.60 / 9.90 / 180 / xeno-canto
36 / Kazakhstan / BjelajaUba / canorus / 1 / 50.56 / 83.67 / 738 / xeno-canto
37 / Kazakhstan / Korgalzhyn region, Akmola / canorus / 1 / 50.58 / 69.98 / 320 / xeno-canto
38 / Kazakhstan / Topar, Almaty Province / subtelephonus / 1 / 45.06 / 75.05 / 358 / xeno-canto
39 / Netherlands / BerkheideZuid, Wassenaar / canorus / 1 / 52.16 / 4.37 / 5 / xeno-canto
40 / Netherlands / Dwingelderveld, Drenthe / canorus / 1 / 52.82 / 6.43 / 18 / xeno-canto
41 / Netherlands / Meijendel, Wassenaar, ZH / canorus / 1 / 52.13 / 4.31 / 4 / xeno-canto
42 / Norway / Tysvær, Rogaland / canorus / 1 / 59.29 / 5.52 / 30 / xeno-canto
43 / Norway / Straumsbukta / canorus / 1 / 69.57 / 18.60 / 25 / xeno-canto
44 / Norway / Straumsbukta SNI / canorus / 2 / 69.58 / 18.64 / 25 / xeno-canto
45 / Norway / Tynset, Hedmark / canorus / 1 / 62.59 / 10.56 / 950 / xeno-canto
46 / Norway / Voksa / canorus / 1 / 62.21 / 5.47 / 10 / xeno-canto
47 / Poland / Biebrza Marshes / canorus / 5 / 53.33 / 22.63 / 103 / xeno-canto
48 / Poland / Mława County, MasovianVoivodeship / canorus / 1 / 52.97 / 20.12 / 110 / xeno-canto
49 / Poland / Kuligow, Mazowieckie Region / canorus / 1 / 52.44 / 21.09 / 90 / xeno-canto
50 / Poland / Poznań, Cytadela / canorus / 1 / 52.42 / 16.94 / 90 / xeno-canto
51 / Poland / Milicz, Silesia / canorus / 1 / 51.53 / 17.27 / 110 / xeno-canto
52 / Poland / Wielkopolski National Park / canorus / 1 / 52.27 / 16.80 / 85 / xeno-canto
53 / Russia / Alatyr / canorus / 2 / 54.86 / 46.57 / 80 / xeno-canto
54 / Russia / GorodBerdsk, Novosibirskaya oblast / canorus / 1 / 54.79 / 83.11 / 150 / xeno-canto
55 / Russia / Gornomariyskiy rayon, Mari El Republic / canorus / 1 / 56.50 / 47.36 / 70 / xeno-canto
56 / Russia / Komsomolsk-na-Amure, Khabarovsk Krai / canorus / 2 / 50.63 / 136.88 / 130 / xeno-canto
57 / Russia / Medvedevskiy rayon, Mari El Republic / canorus / 1 / 56.50 / 47.37 / 70 / xeno-canto
58 / Russia / Nizhnesvirsky Nature Reserve / canorus / 1 / 60.68 / 33.02 / 100 / xeno-canto
59 / Russia / Poretskiy rayon, Chuvashia / canorus / 2 / 55.18 / 46.43 / 75 / xeno-canto
60 / Russia / Sergievka / canorus / 1 / 59.89 / 29.84 / 100 / xeno-canto
61 / Russia / Sharapovo / canorus / 1 / 55.66 / 36.73 / 100 / xeno-canto
62 / Russia / Zvenigovsky District, Mari El Republic / canorus / 1 / 56.16 / 47.49 / 60 / xeno-canto
63 / Russia / Vaninskiy rayon, Khabarovsk Krai / canorus / 1 / 49.20 / 140.34 / 0 / xeno-canto
64 / Russia / Zavolzhe / canorus / 2 / 56.33 / 47.38 / 120 / xeno-canto
65 / Slovakia / Devínskejazero, Malina / canorus / 1 / 48.29 / 16.96 / 139 / xeno-canto
66 / Slovakia / Pod grúne - Volovec / canorus / 1 / 48.75 / 20.56 / 1, 180 / xeno-canto
67 / Spain / PN de Monfrague, Extremadura / bangsi / 2 / 39.84 / -6.00 / 280 / xeno-canto
68 / Spain / La Cerdanya, Catalonia / bangsi / 1 / 42.44 / 1.90 / 1, 200 / xeno-canto
69 / Sweden / Brevik, Västergötland / canorus / 1 / 58.45 / 14.45 / 90 / xeno-canto
70 / Sweden / Tibro, Västergötland / canorus / 1 / 58.45 / 14.31 / 231 / xeno-canto
71 / Sweden / Film, Uppland / canorus / 1 / 60.20 / 17.87 / 50 / xeno-canto
72 / Sweden / Ottenby, Öland / canorus / 1 / 56.22 / 16.42 / 11 / xeno-canto
73 / Sweden / Riksgränsen, Lappland / canorus / 1 / 68.43 / 18.14 / 471 / xeno-canto
74 / Sweden / Ryholm, Västergötland / canorus / 1 / 58.57 / 14.25 / 99 / xeno-canto
75 / Switzerland / Choulex, Geneva / canorus / 1 / 46.23 / 6.23 / 340 / xeno-canto
76 / Switzerland / Broye-Vully, Vaud / canorus / 1 / 46.98 / 7.04 / 420 / xeno-canto
77 / Switzerland / Neeracherried ZH / canorus / 1 / 47.50 / 8.48 / 409 / xeno-canto
78 / Switzerland / Yvonnand / canorus / 1 / 46.80 / 6.76 / 430 / xeno-canto
79 / United Kingdom / Beacon Hill, Northumberland / canorus / 1 / 55.22 / -1.76 / 138 / xeno-canto
80 / United Kingdom / Norfolk / canorus / 1 / 52.66 / 1.05 / 52 / xeno-canto
81 / United Kingdom / Isles of Scilly, England / canorus / 1 / 49.91 / -6.30 / 20 / xeno-canto
82 / United Kingdom / Sherwood Forest / canorus / 1 / 53.21 / -1.07 / 70 / xeno-canto
83 / Vietnam / Mang Den / bakeri / 1 / 14.51 / 108.23 / 1, 250 / xeno-canto
84 / China / Chaoyang, Beijing / canorus / 3 / 40.04 / 116.38 / 38 / this study
85 / China / Shunyi, Beijing / canorus / 2 / 40.12 / 116.81 / 27 / this study
86 / China / Yanqing, Beijing / canorus / 2 / 40.41 / 115.85 / 475 / X. Zhang
87 / China / Hezuo, Gansu / bakeri / 2 / 35.20 / 102.86 / 2, 847 / this study
88 / China / Zhunyi, Guizhou / subtelephonus / 8 / 28.22 / 107.17 / 1, 533 / this study
89 / China / Xinyang, Henan / subtelephonus / 5 / 31.95 / 114.29 / 87 / J.Li, this study
90 / China / Qiqihaer, Heilongjiang / canorus / 5 / 47.20 / 124.24 / 142 / this study
91 / China / Caidian, Hubei / subtelephonus / 17 / 30.33 / 113.83 / 31 / this study
92 / China / Wuhan, Hubei / subtelephonus / 3 / 30.53 / 114.38 / 46 / this study
93 / China / Yueyang, Hunan / subtelephonus / 1 / 28.89 / 112.58 / 29 / xeno-canto
94 / China / Tumuji, Neimenggu / canorus / 1 / 46.21 / 123.08 / 135 / avocet
95 / China / Banma, Qinghai / bakeri / 1 / 33.13 / 100.70 / 4, 014 / this study
96 / China / Chenduo, Qinghai / bakeri / 2 / 33.34 / 97.22 / 4, 323 / this study
97 / China / Hainan, Qinghai / bakeri / 1 / 36.29 / 100.63 / 2, 900 / xeno-canto
98 / China / Wulan, Qinghai / bakeri / 1 / 36.96 / 98.41 / 3, 005 / this study
99 / China / Yushu, Qinghai / bakeri / 2 / 32.70 / 96.54 / 3, 969 / xeno-canto, this study
100 / China / Chongming, Shanghai / subtelephonus / 13 / 31.55 / 121.95 / 14 / this study
101 / China / Aba, Sichuan / bakeri / 2 / 33.07 / 102.19 / 3, 502 / this study
102 / China / Luhuo, Sichuan / bakeri / 1 / 31.62 / 100.22 / 3, 953 / this study
103 / China / Shiqu, Sichuan / bakeri / 1 / 32.37 / 98.66 / 3, 973 / this study
104 / China / Dali, Yunnan / bakeri / 3 / 25.61 / 100.25 / 2, 111 / this study
105 / China / Hangzhou, Zhejiang / subtelephonus / 1 / 30.24 / 120.10 / 66 / this study

* xeno-canto, from avocet, from