A Forster's tern chick near an egg near San Francisco Bay.
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Forster's Tern Chick With Egg
A Forster's tern chick near an egg near San Francisco Bay.
Forster's Tern Chick With Egg
A Forster's tern nest with eggs near San Francisco Bay.
A Forster's tern nest with eggs near San Francisco Bay.
Conservation Canine alerts his handler that Pacific pocket mouse scent
Conservation Canine alerts his handler that Pacific pocket mouse scent
Conservation Canine alerts his handler that Pacific pocket mouse scent
Scientist Prepares to Release Forster’s Tern Chicks
Scientist prepares to release Forster's Tern chicks.
Scientist prepares to release Forster's Tern chicks.
Annie Schultz and Kathy Baumberger Process Forster's Terns Chicks
Scientists sampling Forster's Tern chicks for avain influenza during salt pond restoration work in south San Francisco Bay salt ponds.
Scientists sampling Forster's Tern chicks for avain influenza during salt pond restoration work in south San Francisco Bay salt ponds.
Scientists Collect Forster's Tern Chicks.
Scientists heading out to collect Forster's Tern chicks.
Scientists heading out to collect Forster's Tern chicks.
Sampling Forster’s Tern Chicks for Avian Influenza Study
Scientists sampling Forster's Tern chicks for avain influenza during salt pond restoration work in south San Francisco Bay salt ponds.
Scientists sampling Forster's Tern chicks for avain influenza during salt pond restoration work in south San Francisco Bay salt ponds.
Releasing Forster’s Tern Chicks after Sampling for Avian Flu
Scientists prepare to release Forster's Tern chicks following sampling for avian influenza study.
Scientists prepare to release Forster's Tern chicks following sampling for avian influenza study.
Lodgepole pine in a mountain meadow
Lodgepole pine in a mountain meadow
Lodgepole pine in a mountain meadow
USGS scientist collecting water samples from an amphibian monitoring
USGS scientist collecting water samples from an amphibian monitoring site in Livermore, California.
USGS scientist collecting water samples from an amphibian monitoring site in Livermore, California.
Pacific pocket mouse in Sherman trap
Pacific pocket mouse in Sherman trap
Pacific pocket mouse in Sherman trap
Pacific pocket mouse
Pacific pocket mouse
Pacific pocket mouse
WERC A Silky Flycatcher with a Mistletoe Berry
A female silky flycatcher with a mistletoe berry in her beak. These flycatchers are intimately tied to mistletoe. They build their beautiful cup nests (much like a large hummingbird nest) within the mistletoe, or nearby. The young hatch during February when the mistletoe may be in flower and supply a rich source of insect nutrients for growing young.
A female silky flycatcher with a mistletoe berry in her beak. These flycatchers are intimately tied to mistletoe. They build their beautiful cup nests (much like a large hummingbird nest) within the mistletoe, or nearby. The young hatch during February when the mistletoe may be in flower and supply a rich source of insect nutrients for growing young.
Palmer's Chipmunk (Tamias palmeri)
Palmer's chipmunk (Tamias palmeri).
Palmer's chipmunk (Tamias palmeri).
Pacific pocket mouse in hand
Pacific pocket mouse in hand
Pacific pocket mouse in hand
Mountain Yellow-Legged Frog Habitat
Potential habitat for the endangered mountain yellow-legged frog (Rana muscosa).
Potential habitat for the endangered mountain yellow-legged frog (Rana muscosa).
Waterbirds Feeding at Flooded Field
Credit Douglas Barnum/USGS. A photo of white-faced ibis and gulls feeding on a flooded agricultural field post-harvest.
Credit Douglas Barnum/USGS. A photo of white-faced ibis and gulls feeding on a flooded agricultural field post-harvest.
Mountain Yellow-Legged Frog (Rana muscosa)
Endangered mountain yellow-legged frog (Rana muscosa).
Endangered mountain yellow-legged frog (Rana muscosa).
Mountain Yellow-Legged Frog (Rana Muscosa)
An endangered mountain yellow-legged frog (Rana muscosa).
An endangered mountain yellow-legged frog (Rana muscosa).
Foxtail pine cones at different stages of development
This photo shows foxtail pine cones in different stages of development. The small, tightly closed purplish cones are the most recently formed, the ones on the right older but not yet opened, and the one in the center of the image has already opened and dropped its seeds, which are tucked at the base of the scales.
This photo shows foxtail pine cones in different stages of development. The small, tightly closed purplish cones are the most recently formed, the ones on the right older but not yet opened, and the one in the center of the image has already opened and dropped its seeds, which are tucked at the base of the scales.
Giant sequoia grove showing char marks
Giant sequoias on a slope, with several showing marks of fires the trees have survived.
Giant sequoias on a slope, with several showing marks of fires the trees have survived.