Flock of Black-headed gulls walking by the sea in Redlowo beach, Gdynia, Poland with small wave crashing over

blackheaded gull redlowo beach gdynia poland birds flock wave crashing small slow motion winter plumage coast seagulls migratory 120fps walk cold day fly swim chroicocephalus ridibundus feather sand wildlife ocean group bird gull environment slow motion daytime swarm nobody gathering sea food forage shore bird shoreline shore water behaviour wild seabird slomo baltic