This adolescent chick, hatched and raised at the USGS Patuxent Wildlife Research Center, is one of ten whooping cranes being released in Louisiana in February 2011. It is a milestone for the state and for the birds, which have not lived in the state since the 1950s.
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This adolescent chick, hatched and raised at the USGS Patuxent Wildlife Research Center, is one of ten whooping cranes being released in Louisiana in February 2011. It is a milestone for the state and for the birds, which have not lived in the state since the 1950s.
This adolescent chick, hatched and raised at the USGS Patuxent Wildlife Research Center, is one of ten whooping cranes being released in Louisiana in February 2011. It is a milestone for the state and for the birds, which have not lived in the state since the 1950s.
This adolescent chick, hatched and raised at the USGS Patuxent Wildlife Research Center, is one of ten whooping cranes being released in Louisiana in February 2011. It is a milestone for the state and for the birds, which have not lived in the state since the 1950s.
This adolescent chick, hatched and raised at the USGS Patuxent Wildlife Research Center, is one of ten whooping cranes being released in Louisiana in February 2011. It is a milestone for the state and for the birds, which have not lived in the state since the 1950s.
This adolescent chick, hatched and raised at the USGS Patuxent Wildlife Research Center, is one of ten whooping cranes being released in Louisiana in February 2011. It is a milestone for the state and for the birds, which have not lived in the state since the 1950s.
This adolescent chick, hatched and raised at the USGS Patuxent Wildlife Research Center, is one of ten whooping cranes being released in Louisiana in February 2011. It is a milestone for the state and for the birds, which have not lived in the state since the 1950s.
This adolescent chick, hatched and raised at the USGS Patuxent Wildlife Research Center, is one of ten whooping cranes being released in Louisiana in February 2011. It is a milestone for the state and for the birds, which have not lived in the state since the 1950s.
This adolescent chick, hatched and raised at the USGS Patuxent Wildlife Research Center, is one of ten whooping cranes being released in Louisiana in February 2011. It is a milestone for the state and for the birds, which have not lived in the state since the 1950s.
This adolescent chick, hatched and raised at the USGS Patuxent Wildlife Research Center, is one of ten whooping cranes being released in Louisiana in February 2011. It is a milestone for the state and for the birds, which have not lived in the state since the 1950s.
Boa constrictor "in situ" on a tree buttress right after some rain in Puerto Rico.
Boa constrictor "in situ" on a tree buttress right after some rain in Puerto Rico.
The carcass of a red-winged blackbird from Beebe, AR is being examined by USGS National Wildlife Health Center wildlife pathologist Dr. David E. Green.
The carcass of a red-winged blackbird from Beebe, AR is being examined by USGS National Wildlife Health Center wildlife pathologist Dr. David E. Green.
The carcass of a red-winged blackbird from Beebe, AR is being examined by USGS National Wildlife Health Center wildlife pathologist Dr. David E. Green.
The carcass of a red-winged blackbird from Beebe, AR is being examined by USGS National Wildlife Health Center wildlife pathologist Dr. David E. Green.
The carcass of a red-winged blackbird from Beebe, AR is being examined by USGS National Wildlife Health Center wildlife pathologist Dr. David E. Green.
The carcass of a red-winged blackbird from Beebe, AR is being examined by USGS National Wildlife Health Center wildlife pathologist Dr. David E. Green.
The carcass of a red-winged blackbird from Beebe, AR is being examined by USGS National Wildlife Health Center wildlife pathologist Dr. David E. Green.
The carcass of a red-winged blackbird from Beebe, AR is being examined by USGS National Wildlife Health Center wildlife pathologist Dr. David E. Green.
The carcass of a red-winged blackbird from Beebe, AR is being examined by USGS National Wildlife Health Center wildlife pathologist Dr. David E. Green.
The carcass of a red-winged blackbird from Beebe, AR is being examined by USGS National Wildlife Health Center wildlife pathologist Dr. David E. Green.
The carcass of a red-winged blackbird from Beebe, AR is being examined by USGS National Wildlife Health Center wildlife pathologist Dr. David E. Green.
The carcass of a red-winged blackbird from Beebe, AR is being examined by USGS National Wildlife Health Center wildlife pathologist Dr. David E. Green.
![Image: Osprey fledgings thrive in almost all parts of Chesapeake Bay](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/osprey_fledglings.jpg?itok=NurucTVu)
This seven- to eight-week-old osprey fledgling was photographed in a nest at Poplar Island, Maryland. The island in Chesapeake Bay was used as a control site, where toxic chemical residues were low, in a USGS study of chemical contaminants in Bay ospreys’ food chain.
This seven- to eight-week-old osprey fledgling was photographed in a nest at Poplar Island, Maryland. The island in Chesapeake Bay was used as a control site, where toxic chemical residues were low, in a USGS study of chemical contaminants in Bay ospreys’ food chain.
Gulls, such as this Iceland gull, play an important role in moving avian flu viruses across the North Atlantic between Europe and North America.
Gulls, such as this Iceland gull, play an important role in moving avian flu viruses across the North Atlantic between Europe and North America.
Gulls, such as this lesser black-backed gull, play an important role in moving avian flu viruses across the North Atlantic between Europe and North America.
Gulls, such as this lesser black-backed gull, play an important role in moving avian flu viruses across the North Atlantic between Europe and North America.
Amount of soil (about 200 mg) from which Geomyces destructans was cultured. This shows the small amount of soil needed to harbor live fungus and the threat that humans might pose in moving it around from cave to cave on their gear, boots, and clothing.
Amount of soil (about 200 mg) from which Geomyces destructans was cultured. This shows the small amount of soil needed to harbor live fungus and the threat that humans might pose in moving it around from cave to cave on their gear, boots, and clothing.
View of Hoover Dam and Lake Mead from the Mike O'Callaghan–Pat Tillman Memorial Bridge (Colorado River Bridge).
View of Hoover Dam and Lake Mead from the Mike O'Callaghan–Pat Tillman Memorial Bridge (Colorado River Bridge).
Brown treesnakes were a major contributor to the loss of nine of 11 native forest birds on Guam.
Brown treesnakes were a major contributor to the loss of nine of 11 native forest birds on Guam.
Creek Chub (Semotilus atromaculatus): this species is widely distributed in streams and rivers of eastern US and Canada.
Creek Chub (Semotilus atromaculatus): this species is widely distributed in streams and rivers of eastern US and Canada.
Sagebrush in the Great Basin, Utah
Sagebrush in the Great Basin, Utah
Close up of wolf eyes
Close up of wolf eyes