หงส์, whooper หงส์, Cygnus Cygnus, นก, นกน้ำ, นกวิทยา, สัตว์, ธรรมชาติ, การบิน, สีน้ำเงิน, ภาพประกอบ
Public Domain
ภาพถ่ายปลอดค่าลิขสิทธิ์ที่เกี่ยวข้อง
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