碳酸鈉(sodium carbonate)、紅鶴(flamingo)、喙(beak)

紅鶴(flamingo)

 (Wikipedia)

(excerpt)
Though harsh, the soda rich waters teem with a unique form of blue-green algae which the flamingos siphon through fine combs in their beaks. 

• 鳥喙型態之淺談
  因嘴喙型態與覓食方式特殊演化出之個體。上喙內彎龐大的鳥喙。全世界有五種紅鶴，上喙隆起龐大向內彎曲，下喙較小由上喙包住，覓食時會低 頭以上喙放入水中向前行進來濾食水中藻類為食。
• 喙
  喙是鳥類上下頜包被的硬角質鞘，起到哺乳動物唇和齒的作用。喙的主要功能是取食和梳理羽毛。紅鸛的上喙隆起而龐大，正是為了低頭撈取水中的藻類。

• 鳥類生理解剖學

• 東非蘇打粉工廠 恐干擾湖區紅鶴繁殖
  Lake Natron, in the Great Rift Valley, is known as a soda lake because of its high concentration of sodium carbonate.

• 碳酸鈉，俗名蘇打、純鹼、洗滌鹼，生活中亦常稱「鹼」。

• 單足而立- 智利紅鶴
  進食時將喙上下顛倒伸進水中，再利用喙部櫛狀構造過濾魚蝦或藻類食用。

• Flamingo flies the coop 紅鶴飛出籠
  She's in a very vulnerable state. She was seen feeding off the algae in a waterlogged field, but otherwise we don't know how she's managing to get food. We just want to get her back as soon as possible.

 (Wikipedia)