Patuxent Wildlife Research Center


Patuxent Wildlife Research Center (PWRC) produces innovative science to support natural resource management and meet our nation’s most pressing conservation challenges.
PWRC research topics include bird population dynamics, ecotoxicology, and the development of quantitative & decision analysis tools. We conduct several national programs, including the Bird Banding Lab and the Breeding Bird Survey.

Research Spotlight

Research Spotlight

USGS Patuxent scientists are providing managers with tools for improving detection and for proactively mitigating the impacts of amphibian diseases.

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Publication Spotlight

Publication Spotlight

A decision-support framework was developed in collaboration with USFWS to identify approaches to maximize salt marsh management benefits at Bombay Hook National Wildlife Refuge.

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Date published: November 18, 2019

First Painted Bunting Banded at Patuxent Wildlife Research Center

First Painted Bunting banded at Patuxent Wildlife Research Center is a rare sight in Maryland.

Date published: July 23, 2019

Brilliant Bandings & Superb Sightings: Ring-billed Gull in Long Island

A color-marked Ring-billed Gull has second sighting in a Long Island village.

Date published: June 14, 2019

Modeling Management Actions Helps Researchers Pinpoint the Main Culprit of Wood Frog Declines

Amphibian decline is a global conservation crisis driven by multiple interacting stressors, which often act at a local scale with global implications.


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Year Published: 2020

Forest protection criteria within the Mississippi Alluvial Valley

The nearly ubiquitous bottomland hardwood forests that historically dominated the Mississippi Alluvial Valley have been greatly reduced in area. In addition, changes in hydrology and forest management have altered the structure and composition of the remaining forests. To ameliorate the detrimental impact of these changes on wildlife, conservation...

Elliott, A. Blaine; Mini, Anne E.; McKnight, S. Keith; Twedt, Daniel J.

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Year Published: 2020

Variation of annual apparent survival and detection rates with age, year, and individual identity in male Weddell seals (Leptonychotes weddellii) from long-term mark-recapture data

Exploring age- and sex-specific survival rates provides insight regarding population behavior and life-history trait evolution, but many population studies exclude males. Accordingly, our understanding of how age-specific patterns of survival, including actuarial senescence, compare between the sexes remains inadequate. Using 35 years of mark-...

Brusa, Jamie L.; Rotella, Jay J.; Garrott, Robert A.; Paterson, J. Terrill; Link, William

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Year Published: 2020

Brodifacoum toxicity in American Kestrels (Falco sparverius) with evidence of increased hazard upon subsequent anticoagulant rodenticide exposure

A seminal question in ecotoxicology is the extent to which contaminant exposure evokes prolonged effects on physiological function and fitness. A series of studies were undertaken with American kestrels ingesting environmentally realistic concentrations of the second-generation anticoagulant rodenticide (SGAR) brodifacoum (BROD). Kestrels fed BROD...

Rattner, Barnett A.; Volker, Steven F; Lankton, Julia S.; Bean, Thomas G.; Lazarus, Rebecca S.; Horak, Katherine E.