Black-headed gulls and black-tailed gulls on the beach Young and adult birds

जानवरों / Black-headed gulls and black-tailed gulls on the beach Young and adult birds
प्रकृति-लैंडस्केप / Black-headed gulls and black-tailed gulls on the beach Young and adult birds
परिस्थितिकी / Black-headed gulls and black-tailed gulls on the beach Young and adult birds