Water

Delaware River Watershed

Covering 13,500 square miles and four states—Pennsylvania, New York, New Jersey and Delaware—the Delaware River Watershed is a diverse landscape of more than 35 ecological systems and 185 natural communities. It provides important year-round habitats and critical migratory stopovers for approximately 400 bird species.

More than 13.3 million people obtain clean, abundant water from the Delaware River Watershed, including 4.5 million residents of New York City, as well as Philadelphia, Allentown and Trenton.

The watershed is a significant economic driver, grossing more than $25 billion annually in economic activity and $21 billion in ecosystem goods and services each year, as well as contributes 600,000 jobs and $10 billion in annual wages to the economy. 

In January 2019, Audubon launched the Brewers for the Delaware River, which now includes a coalition of nearly 20 craft brewers, to promote the protection of the watershed as a reliable, clean water source that benefits the people, birds, and communities of the region. 

Headwaters to Capes

The Upper Watershed is dominated by mature, even-aged forests. Audubon manages these forests for sustainability, profitability and habitat suitability for key species, including the iconic Wood Thrush. Forest preservation in this region of New York and northeastern Pennsylvania also serves a critical role in watershed health, preserving water quality and regulating temperature in headwater streams.

In the Central Watershed, forests give way to urbanization, agriculture, energy infrastructure, and other fragmenting uses. The Lehigh and Schuylkill Rivers are the largest tributaries in this region, containing an expansive network of wetlands and streamside habitats supporting abundant and diverse bird communities.  

Greater Philadelphia, Camden, Wilmington, and the Greater Lehigh Valley in the Central Watershed experience stormwater runoff and combined sewer overflows, which contribute to degraded water quality in these population centers, as well as face increased flooding and extreme weather events.  

In the Lower Watershed, the Delaware Bay suffers from stressors like nutrient pollution and sea-level rise that are degrading bird habitats along salt marshes and beaches. Overfishing and reduced oxygen cause declining forage fish populations, a vital food source for migratory shorebirds that depend on the Delaware Bay as a key migratory stopover site along the Atlantic Flyway.

Audubon's Vision

Audubon's vision connects conservation from the headwaters to the capes of the Delaware River, focusing on the places and issues most important to birds. We will work to address habitat loss and degradation, water pollution and the spread of invasive species through on-the-ground restoration efforts, policy initiatives, and education and engagement with a robust network of chapters, members and partners.

Our Delaware River Watershed Staff

Julie Hill-Gabriel

Julie Hill-Gabriel

Vice President, Water Conservation

Mike Burger

Mike Burger

Vice President and Executive Director, Audubon New York & Connecticut

Caitlin Wall

Caitlin Wall

Policy Director, Water Conservation

Suzanne Biemiller

Suzanne Biemiller

Vice President and Executive Director, Audubon Mid-Atlantic

Aneca Atkinson

Aneca Atkinson

Delaware Watershed Program Director

Delaware River Watershed News

Delaware River Watershed

Delaware River Federal Priorities for 2023 and Beyond

By Maggie Bynum
June 07, 2023 — Audubon's efforts on and off Capitol Hill.
Delaware River Watershed

Big Wins at the Ballot for the Delaware River Watershed (and for People and Birds)

February 02, 2023 — And a look ahead at 2023.
Delaware River Watershed

Revitalizing Green Spaces Across Philadelphia to Improve Watershed Health, Habitat for Birds and People

By Keith Russell
December 07, 2022 — Plantings and cleanups in the Delaware River Watershed’s biggest city reduce flooding and pollution for wildlife and communities.

Audubon News

Northern Harrier. Doug German/Audubon Photography Awards
Delaware River Watershed

A Policy Agenda to Protect the Birds of the Delaware River Watershed

Audubon focuses on funding and bipartisan engagement for clean, reliable water for birds and people.
Delaware River Watershed

Bipartisan Delaware River Watershed Caucus Signals a Beacon of Opportunity

The recently formed caucus shows substantial federal and state support of one of the founding rivers of America for birds and communities.
Delaware River Watershed

Audubon’s Delaware River Watershed Program Takes Flight with Key Conservation Funding

U.S. Fish and Wildlife Service program supports bird conservation in three critical regions of the watershed.

Birds That Need the Delaware River