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A biologist holds a bird with its wing gently extended
Examining the Wing of a Blue-headed Vireo
Examining the Wing of a Blue-headed Vireo
Examining the Wing of a Blue-headed Vireo

A biologist gently extends the wing of a Blue-headed Vireo to look for clues on how old the bird is. During fall migration, scientists can generally determine if a bird was hatched during the current year or if the bird is older. They do this by looking at the general wear of the feathers, and if the bird has retained any of their plumage as a nestling. 

A biologist gently extends the wing of a Blue-headed Vireo to look for clues on how old the bird is. During fall migration, scientists can generally determine if a bird was hatched during the current year or if the bird is older. They do this by looking at the general wear of the feathers, and if the bird has retained any of their plumage as a nestling. 

David kneeling on wood plank over high grass setting up surface elevation table
David Walters measuring surface elevation table that is used to assess changes in wetland surface (accretion and/or erosion).
David Walters measuring surface elevation table that is used to assess changes in wetland surface (accretion and/or erosion).
David Walters measuring surface elevation table that is used to assess changes in wetland surface (accretion and/or erosion).

David Walters measuring surface elevation table that is used to assess changes in wetland surface (accretion and/or erosion) at Money Stump in Blackwater National Wildlife Refuge in Cambridge, Maryland.

Winter 2024 Photo Contest: Melinda Martinez, Honorable Mention category

David Walters measuring surface elevation table that is used to assess changes in wetland surface (accretion and/or erosion) at Money Stump in Blackwater National Wildlife Refuge in Cambridge, Maryland.

Winter 2024 Photo Contest: Melinda Martinez, Honorable Mention category

a view of a laptop computer connected to 2 monitors and a microplate reader.
EESC Microplate Reader
EESC Microplate Reader
EESC Microplate Reader

a view of a laptop computer connected to 2 monitors and a microplate reader. The monitors display data generated from an assay including a standard curve.

a view of a laptop computer connected to 2 monitors and a microplate reader. The monitors display data generated from an assay including a standard curve.

A male biologist and a female biologist wearing bright green PFD;s wade into the canal to release American Shad
American Shad Release at Conte Lab
American Shad Release at Conte Lab
American Shad Release at Conte Lab

Ted Castro-Santos, EESC, and Katie Deters, PNNL, release tagged American Shad in the canal at the Conte Lab 

Ted Castro-Santos, EESC, and Katie Deters, PNNL, release tagged American Shad in the canal at the Conte Lab 

A very small brown bird, with a short tail, in a bird bander's hand
Winter Wren
Winter Wren
Winter Wren

At the Bird Banding Lab's Fall Migration Station, Winter Wrens are one of the smallest species they band. They have the smallest tail measurement at the station, between 26-36 millimeters!  

At the Bird Banding Lab's Fall Migration Station, Winter Wrens are one of the smallest species they band. They have the smallest tail measurement at the station, between 26-36 millimeters!  

A female biologist sits on the ground holding an Eastern box turtle and recording measurements on a piece of paper.
Processing an Eastern Box Turtle
Processing an Eastern Box Turtle
Processing an Eastern Box Turtle

A female biologist records data taken from an Eastern box turtle survey event                 

A female biologist records data taken from an Eastern box turtle survey event                 

A female biologist uses a small measuring tape to measure the size of the shell of an eastern box turtle.
Measuring an Eastern Box Turtle
Measuring an Eastern Box Turtle
Measuring an Eastern Box Turtle

A female biologist holds an Eastern box turtle and measures its shell as part of a survey.

A female biologist holds an Eastern box turtle and measures its shell as part of a survey.

The yellow-patterned top shell of an Eastern box turtle surrounded by leaves.
Eastern Box Turtle
Eastern Box Turtle
Eastern Box Turtle

An Eastern box turtle in the leaves in the woods of Patuxent.                  

An Eastern box turtle in the leaves in the woods of Patuxent.                  

A female biologist holds an Eastern box turtle in the woods to process it as part of a survey.
Biologist Holding Eastern Box Turtle
Biologist Holding Eastern Box Turtle
Biologist Holding Eastern Box Turtle

A female biologist holds an Eastern box turtle in her hand as gets ready to process it as part of a survey.

A female biologist holds an Eastern box turtle in her hand as gets ready to process it as part of a survey.

A female biologist holds an Eastern Box Turtle pointing to an indentation in the underside of the shell.
Biologist and Eastern Box Turtle
Biologist and Eastern Box Turtle
Biologist and Eastern Box Turtle

Biologist Sofia Galvan demonstrates how to identify the gender of an Eastern Box Turtle. 

Biologist Sofia Galvan demonstrates how to identify the gender of an Eastern Box Turtle. 

The underbelly of a bright orange skinned Eastern box turtle being held by a biologist.
Eastern Box Turtle
Eastern Box Turtle
Eastern Box Turtle

An Eastern Box turtle with vibrant orange skin is caught as part of the Patuxent Box Turtle Survey.

An Eastern Box turtle with vibrant orange skin is caught as part of the Patuxent Box Turtle Survey.

A large red-wood shed with large barn like doors.
New shed at the Bird Banding Station
New shed at the Bird Banding Station
New shed at the Bird Banding Station

A large shed is part of the new bird banding station. It will serve as a more private place for banding and storage.

A large shed is part of the new bird banding station. It will serve as a more private place for banding and storage.

An open book with several figures of different sized black crowns, and a small yellow bird in the banders grip.
Wilson's Warbler
Wilson's Warbler
Wilson's Warbler

Bird Bander reviewing the "Identification Guide to North American Birds" by Peter Pyle, to see if this Wilson's Warbler's black crown gives any indication of its age. 

Bird Bander reviewing the "Identification Guide to North American Birds" by Peter Pyle, to see if this Wilson's Warbler's black crown gives any indication of its age. 

Two brightly colored birds in the hand, one's a male while the other is a female
Northern Parulas
Northern Parulas
Northern Parulas

A comparison of two hatch year (born this year) Northern Parulas. The individual on the left is a male, while a female is on the right, note the color differences including the band of chestnut on the males chest. 

A comparison of two hatch year (born this year) Northern Parulas. The individual on the left is a male, while a female is on the right, note the color differences including the band of chestnut on the males chest. 

A bright yellow bird in the hand
Yellow Warbler
Yellow Warbler
Yellow Warbler

The BBL's Fall Migration Station's second banded Yellow Warbler in the last 10 years! 

The BBL's Fall Migration Station's second banded Yellow Warbler in the last 10 years! 

A yellow bird in the hand
Yellow-throated Vireo
Yellow-throated Vireo
Yellow-throated Vireo

The Yellow-throated Vireo is an uncommon visitor to the BBL's Fall Migration Station - this is the first one since 2016!

The Yellow-throated Vireo is an uncommon visitor to the BBL's Fall Migration Station - this is the first one since 2016!

Benjamin P Gressler
Benjamin P Gressler
Benjamin P Gressler
Benjamin P Gressler

Ben is a biologist at the Eastern Ecological Science Center in Kearneysville, West Virginia

Ben is a biologist at the Eastern Ecological Science Center in Kearneysville, West Virginia

A very small larval two-lined salamander
Larval Two-Lined Salamander
Larval Two-Lined Salamander
Larval Two-Lined Salamander

This is a newly hatched two-lined salamander (Eurycea bislineata). Two-lined salamanders are a stream-adapted species, which means that the larvae are fully aquatic and live in streams.

This is a newly hatched two-lined salamander (Eurycea bislineata). Two-lined salamanders are a stream-adapted species, which means that the larvae are fully aquatic and live in streams.

Female scientist in a hard hat adjusts niskin bottle on research vessel. Ocean in the background
USGS Scientist retrieving seawater from a Niskin bottle
USGS Scientist retrieving seawater from a Niskin bottle
USGS Scientist retrieving seawater from a Niskin bottle

USGS Scientist, Alexis Weinnig, working aboard the NOAA ship Okeanos Explorer to sample seawater with a niskin water bottle mounted on the back of the remotely operated vehicle (ROV). The water from the niskin bottles is filtered for eDNA to detect biological life in the water column. 

USGS Scientist, Alexis Weinnig, working aboard the NOAA ship Okeanos Explorer to sample seawater with a niskin water bottle mounted on the back of the remotely operated vehicle (ROV). The water from the niskin bottles is filtered for eDNA to detect biological life in the water column. 

A Remotely Operated Vehicle (ROV) is seen in foreground approaching the NOAA Ship Pisces at sunset
Return of remotely operated vehicle after dive in Gulf of Mexico
Return of remotely operated vehicle after dive in Gulf of Mexico
Return of remotely operated vehicle after dive in Gulf of Mexico

The Mohawk Remotely Operated Vehicle (ROV) returns to the NOAA Ship Pisces after a successful dive to survey benthic habitats in the Gulf of Mexico

The Mohawk Remotely Operated Vehicle (ROV) returns to the NOAA Ship Pisces after a successful dive to survey benthic habitats in the Gulf of Mexico

A remotely operated vehicle is being lifted onto the NOAA Ship Pisces at sunset
Sunset recovery of remotely operated vehicle
Sunset recovery of remotely operated vehicle
Sunset recovery of remotely operated vehicle

After exploring benthic communities in the deep Gulf of Mexico, the remotely operated vehicle Mohawk (UNCW-Undersea Vehicles Program) is lifted back onto the NOAA Ship Pisces

After exploring benthic communities in the deep Gulf of Mexico, the remotely operated vehicle Mohawk (UNCW-Undersea Vehicles Program) is lifted back onto the NOAA Ship Pisces

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