Geographic distribution of survey site.

 
  Part of: Wijethunge IK, Cao J, Meng F, Xu Z, Zhao Q, Cao L (2025) Occurrence dataset from the waterbird survey of the middle and lower Huai He floodplain, China. Biodiversity Data Journal 13: e158384. https://doi.org/10.3897/BDJ.13.e158384