According to the List of Beneficial or Economically and Scientifically Important Terrestrial Wildlife under National Protection issued by the State Forestry Administration of the People’s Republic of China on August 1, 2000, Pica pica should be translated as “喜鹊”，so that the Chinese for Pica serica should be also be changed
The split of Pica serica and P. bottanensis (and, outside China, P. asirensis and P. mauritanica) from P. pica happened as recently as 2018: in other words, that 2000 document refers to P. pica in a different, much broader sense than iNaturalist does today (including populations now assigned to P. serica and several other species). Magpies all throughout the eastern half or so of China are now P. serica in iNat, and the range of the newly restricted P. pica only extends a bit into the northernmost and westernmost parts of China, so if the Chinese name of the former broader P. pica were to be applied to any post-split species, P. serica—which accounts for over 95% of all iNaturalist and eBird observations of magpies in China—would seem to be the most appropriate candidate; and indeed, that’s what’s been done on iNat (and eBird), transferring 喜鹊 to P. serica post-split, and modifying the name of the narrowed concept of P. pica to 欧亚喜鹊 (and the also recently-split P. bottanensis becoming 青藏喜鹊).
Moving discussion to a taxon flag on iNaturalist: https://www.inaturalist.org/flags/779055