species affect the color of salt ponds.

Despite primarily being a man-made environment, the San Francisco Bay Salt Ponds have become a core ecosystem for fish, waterbirds, and other organisms. The San Francisco Bay Salt Ponds supports over 1 million waterbirds through the year, hosting over 75 species, and peaking at 200,000 birds in a single salt pond during the winter and spring migration season. Some of the most common waterbird species in the salt ponds include the Canvasback (Aythya valisineria),