Josep del Hoyo on Instagram: "Today, my favourite seagull: Ross's Gull (Rhodostethia rosea). One photo and six videos as follows: 1) incubating in the nest and view of tundra habitat. 2) adult arriving to the nest and its mate calling. 3) another adult calling from its nest. 4) a nest with an egg and two chicks inside. 5) an adult on the nest feeding a chick with chironomids. 6) Slow motion view of an adult in breeding plumage flying. This sparse colony in the Russian Far East is being monitored