照片
· David Brossard
·
CC BY-SA 2.0照片
· California. Dept. of Fish and Game; California. Fish and Game Commission; California. Division of Fish and Game
·
No restrictions照片
· Bill Larkins
·
CC BY-SA 2.0照片
· Federico Pizano
·
CC BY 3.0照片
· NASA Earth Observatory image by Wanmei Liang, using Landsat data from the U.S. Geological Survey.
·
Public domain
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