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: February 12, 2020

Employee Spotlight: Chief of the Bird Banding Laboratory Retires

Reflecting on Bruce G. Peterjohn’s almost three-decade long career with Patuxent Wildlife Research Center.

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.


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Year Published: 2020

Waterfowl occurrence and residence time as indicators of H5 and H7 avian influenza in North American Poultry

Avian influenza (AI) affects wild aquatic birds and poses hazards to human health, food security, and wildlife conservation globally. Accordingly, there is a recognized need for new methods and tools to help quantify the dynamic interaction between wild bird hosts and commercial poultry. Using satellite-marked waterfowl, we applied Bayesian joint...

Humphreys, John M.; Ramey, Andy; Douglas, David C.; Mullinax, Jennifer M.; Soos, Catherine; Link, Paul T.; Walther, Patrick; Prosser, Diann J.

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Year Published: 2020

Uptake, metabolism, and elimination of fungicides from coated wheat seeds in Japanese quail (Coturnix japonica)

Pesticides coated to the seed surface potentially pose an ecological risk to granivorous birds that consume incompletely buried or spilled seeds. To assess the toxicokinetics of seeds treated with current-use fungicides, Japanese quail (Coturnix japonica) were orally dosed with commercially coated wheat seeds. Quail were exposed to metalaxyl,...

Gross, Michael S.; Thomas G. Bean; Hladik, Michelle; Rattner, Barnett A.; Kuivila, Kathryn

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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.