A California gull comes in for a landing on the gull-filled flats of the South San Francisco Bay salt ponds
(image 1 of 8)A California gull, which eats gull eggs (shown here) as well as those of other species
(image 2 of 8)USGS biologists in the California gull colony at Pond A6, part of the South Bay Salt Pond Restoration Project where the gulls are encouraged to nest.
(image 3 of 8)Caitlin Robinson-Nilsen examines a snowy plover egg at the E Ponds in the South Bay.
(image 5 of 8)Snowy plovers are tiny shorebirds, whose offspring can fall prey to larger birds like California gulls.
(image 6 of 8)Panorama of Salt Pond A6, taken in 2010 before the area was breached as part of the South Bay Salt Pond Restoration Project. Today, the area has accumulated sediment and looks like a natural mudflat. The image was created by stitching together 12 wide-angle frames taken by a camera at 150 feet, suspended from a kite, and is part of the Hidden Ecologies Project, http://bit.ly/NYMgAq.
(image 7 of 8)A pair of avocets chase a California gull that had snatched their baby from a nest at Don Edwards S. F. Bay National Wildlife Refuge.
(image 8 of 8)