นก, พลั่วเหนือ, นกวิทยา, สายพันธุ์, สัตว์, ธรรมชาติ, การบิน, เป็ด, นกน้ำ, ขน, ปีก
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ภาพถ่ายปลอดค่าลิขสิทธิ์ที่เกี่ยวข้อง
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