Wading in the murky and muddy seawater, a black-headed seagull, Chroicocephalus ridibundus stays in the area of Bangphu in Samut Prakan in Thailand

seagulls blackheaded gull chroicocephalus ridibundus palearctic migratory chocolatebrown head palegrey body wings feathers red bill red legs birds salt pans estuaries flight mud fish pond animals wildlife nature coastal area marshes lakes pelagic species colony brownhooded gull chroicocephalus maculipennis gulls spotted wings brown head red beak bangpho thailand asia southeast asia natural habitat freshwater lakes intertidal marshes river banks open fields brownhooded gulls common gull larus canus sea mew breeding plumage gulls in thailand migratory gulls bamboo stilts