In previous research, we characterized the two H5N6 influenza viruses isolated from apparently healthy wild birds in 2014 and 2015 in Guangdong Province, China. On the one hand, SW8 was isolated from an oriental magpie-robin, and its PB2 gene with poultry H5N6 viruses shared the highest nucleotide similarity with that of A/chicken/Dongguan/2690/2013 (H5N6). On the other hand, ZH283 was isolated from a Pallas’s sandgrouse, and its PB2 gene shared the highest nucleotide similarity with that of A/Guangdong/ZQ874/2015 (H5N6) isolated from a 40-year-old woman who reported exposure to domestic poultry3.