補充一句，bald eagle 的頭部羽毛要過4-5年才變白。少年的白頭鷹與成年一樣大，但頭與身體毛色一樣。

來源: 唐宋韻於 2025-08-09 17:51:15 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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