Occurrence data of Chinese Galliformes

Occurrence records were mainly collected from China Bird Report Center (CBRC) and National Specimen Information Infrastructure (NSII) (China Bird Report Center, 2019; National Specimen Information Infrastructure, 2019), while some were got from eBird and GBIF (eBird, 2019; GBIF, 2019). Coordinates of records with detail locations were got through map tools, and the records of low spatial resolution were removed. All occurrences were validated by distribution range maps which were downloaded from BirdLife International to estimate and remove the outline points (BirdLife International and Handbook of the Birds of the World, 2018).