The oldest building at the Patuxent Research Center.
Images
Images
The oldest building at the Patuxent Research Center.
Different bands for birds, so the scientist can track bird locations.
Different bands for birds, so the scientist can track bird locations.
Employee holds a baby duckiling at the Patuxent Research Center.
Employee holds a baby duckiling at the Patuxent Research Center.
Students pet the newborn duckling at the Patuxent Research Center.
Students pet the newborn duckling at the Patuxent Research Center.
These invasive quagga mussels were caught using a trawl, or fishing net.
These invasive quagga mussels were caught using a trawl, or fishing net.
USGS employee Melanie Gade holding a baby duck at the Patuxent Research Center.
USGS employee Melanie Gade holding a baby duck at the Patuxent Research Center.
Student feeding little ducklings at the Patuxent Research Center.
Student feeding little ducklings at the Patuxent Research Center.
Baby ducklings born a week ago at the Patuxent Research Center.
Baby ducklings born a week ago at the Patuxent Research Center.
Two whooping cranes at the Patuxent Research Center.
Two whooping cranes at the Patuxent Research Center.
View of Patuxent Lake.
Road to Patuxent on a hot summer day.
Road to Patuxent on a hot summer day.
Two baby ducklings swimming together at the Patuxent Research Center.
Two baby ducklings swimming together at the Patuxent Research Center.
Installing a water-quality micro-sampler under high water conditions
Installing a water-quality micro-sampler under high water conditionsUSGS Hydrologist Heather Krempa collects a stream sample at Little Fabious River, near Monticello, Missouri, for the Regional Stream Quality Assessments.
Installing a water-quality micro-sampler under high water conditions
Installing a water-quality micro-sampler under high water conditionsUSGS Hydrologist Heather Krempa collects a stream sample at Little Fabious River, near Monticello, Missouri, for the Regional Stream Quality Assessments.
A hydrologist maneuvers an isokinetic sampler into position
A hydrologist maneuvers an isokinetic sampler into positionUSGS Hydrologist Dan Button maneuvers an isokinetic sampler into position prior to lowering it into Massies Creek, in Wilberforce, Ohio.
A hydrologist maneuvers an isokinetic sampler into position
A hydrologist maneuvers an isokinetic sampler into positionUSGS Hydrologist Dan Button maneuvers an isokinetic sampler into position prior to lowering it into Massies Creek, in Wilberforce, Ohio.
Water-quality sampling in Cuyahoga Valley National Park, 2013
Water-quality sampling in Cuyahoga Valley National Park, 2013Water-quality sampling in Cuyahoga Valley National Park, 2013. Photograph by Amie Brady, U.S. Geological Survey
Water-quality sampling in Cuyahoga Valley National Park, 2013
Water-quality sampling in Cuyahoga Valley National Park, 2013Water-quality sampling in Cuyahoga Valley National Park, 2013. Photograph by Amie Brady, U.S. Geological Survey
Four Brewer's sparrow (Spizella breweri) chicks in nest, Steens Mountain, SE Oregon.
Four Brewer's sparrow (Spizella breweri) chicks in nest, Steens Mountain, SE Oregon.
Brewer's sparrow (Spizella breweri) chicks and egg in nest, Steens Mountain, SE Oregon.
Brewer's sparrow (Spizella breweri) chicks and egg in nest, Steens Mountain, SE Oregon.
Brewer's sparrow (Spizella breweri) chicks in nest, Steens Mountain, SE Oregon.
Brewer's sparrow (Spizella breweri) chicks in nest, Steens Mountain, SE Oregon.
Brewer's sparrow (Spizella breweri) chicks and egg in nest, Steens Mountain, SE Oregon.
Brewer's sparrow (Spizella breweri) chicks and egg in nest, Steens Mountain, SE Oregon.
Four Brewer's sparrow (Spizella breweri) chicks in nest, Steens Mountain, SE Oregon.
Four Brewer's sparrow (Spizella breweri) chicks in nest, Steens Mountain, SE Oregon.
Four Brewer's sparrow (Spizella breweri) chicks in nest, Steens Mountain, SE Oregon.
Four Brewer's sparrow (Spizella breweri) chicks in nest, Steens Mountain, SE Oregon.