对此，美国奥杜邦环保协会纽约分会公民科学处处长约翰.劳登表示“这种情况之前曾发生过一次，造成这种现象是由多种原因综合作用而成。
“It’s only happened once before. It’s a confluence of circumstances that come together to cause this,” said John Rowden, citizen science director at the Audubon Society’s New York chapter.
12月7日，周二，约翰·詹姆斯•奥杜邦的《美洲鸟类图谱》全集在拍卖会上创下了拍卖记录。
On TUESDAY December 7th a complete volume of John James Audubon's "The Birds of America" fetched a record price at auction.
12月7日，周二，约翰·詹姆斯•奥杜邦的《美洲鸟类图谱》全集在拍卖会上创下了拍卖记录。
On TUESDAY December 7th a complete volume of John James Audubon's "The Birds of America" fetched a record price at auction.
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