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 | | 1997); Osinovaya channel, left bank of the Amur river, 30 km upstream from Khabarovsk, Smidovich district, nest with two adults and three young in June 1995 (B. Voronov in litt. |
 | | Niulanshan, Shunyi county, one collected, January 1964 (Cai Qikan 1987); Chaobai He river, Shunyi district, 14 birds on a flooded area, January 1999 (Qian Fawen in litt. |
 | | Sibsagar district, one, undated (P. Bhattacharjee verbally 1994); unspecified localities, undated (Choudhury 1990). |
| www.rdb.or.id /view_html.php?id=284&op=cicoboyc (10500 words) |
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