1. 越冬：winter solstice 冬至 | wintering 越冬 | woadwaxen brake 染料木丛林
1. It has a wide water area and numerous hydrophytes water plants and aquatics, which makes it a heaven for migratory birds wintering in the area.
2. Experts have said the virus could spread further into Europe shortly in spring when migrating birds return after wintering in Africa.
3. Deep Bay's Ramsar Site is one of the most important wintering points for migratory birds in China.