Stock Photo: Saunders's Gull (Chroicocephalus saundersi) adult, non-breeding plumage, foraging on mudflats, Mai Po Nature Reserve, Hong Kong, China, december
Stock Photo: 4421-6487 Saunders's Gull (Chroicocephalus saundersi) adult, non-breeding plumage, foraging on mudflats, Mai Po Nature Reserve, Hong Kong, China, december