black-headed gulls perched on the edge of the pier looking out across the water while one of them fixates the photographer

animal attention attentive background beak beauty behavior bird birds birdwatching black chroicocephalus coast cold companions company feather file fixate fixation flock group gull headed line maritime nature ocean ornithology outdoor peer pier plumage quay ridibundus row sea seagull stare water white wild wildlife wing winter