Welcome to Constitution Marsh Audubon Center and Sanctuary

The natural side of the Hudson River.

The Constitution Marsh Visitor Center is currently closed. However, our hiking trails are open everyday from sunrise to sunset. Please visit our Planning a Visit page for more information on directions, parking, and access.   Please note that there is no parking available on-site at Constitution Marsh Audubon Center. 

Constitution Marsh Audubon Center and Sanctuary is a unique and beautiful tidal marsh located in Putnam County, New York, and serves as vital natural habitat in the Hudson River Estuary. It is situated on the east shore of the Hudson River, just south of the village of Cold Spring. The marsh is an Audubon New York Important Bird Area, a New York State Bird Conservation Area, and is designated as a Significant Coastal Fish and Wildlife Habitat.

We conduct nature education programs for visiting groups, bird studies, invasive species management, and habitat restoration efforts. Please read our FAQ page for important information and a safe and enjoyable visit, and explore the above menus to learn more about Audubon New York's stewardship and education programs devoted to the conservation of birds, other wildlife, and their habitats across New York State.

Audubon fosters an inclusive community that honors individuals of all races, cultures, abilities, religions, sexual orientations, gender expressions, and identities. Click here to read Audubon's full statement on equity, diversity, and inclusion.

Planning a Visit
Visit

Planning a Visit

Important information about visiting Constitution Marsh

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Birds
Birds

Birds

Birds of New York

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Group and Public Programs
Programs

School Programs

Students become scientists when visiting Constitution Marsh

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Internship Programs
Programs

Internship Programs

Giving students the opportunity to work and learn about the conservation field.

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News and Updates

Youth Climate Summit 2024
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Youth Climate Summit 2024

A two-day interactive summit with two components: virtual and in person field day!

New Motus Antenna Will Track Migratory Birds Flying Over Putnam County
News

New Motus Antenna Will Track Migratory Birds Flying Over Putnam County

The Constitution Marsh Audubon Center and Sanctuary’s “Motus” wildlife tracking antenna receives pings from tracking devices on birds, helping scientists better understand their movements.

Hudson Valley Sanctuaries Are a Home for Early-Career Environmentalists
News

Hudson Valley Sanctuaries Are a Home for Early-Career Environmentalists

Internships through the Student Conservation Association give early-career environmentalists a chance to see what its like out in the field.

Audubon: “History—and we–will hold responsible the elected officials who have promoted the assault on our democracy.”
News

Audubon: “History—and we–will hold responsible the elected officials who have promoted the assault on our democracy.”

A statement from David Yarnold, president and CEO of the National Audubon Society.

How To Do a "Bird Sit"
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How To Do a "Bird Sit"

Pause and enjoy a peaceful moment with the birds.

Art Project: This Place Is for the Birds!
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Art Project: This Place Is for the Birds!

After learning which migratory flyway they live in, kids create invitations that promote the local area as a good place for birds to stop or stay.

Game: Follow a Bird's Migration Story
Birds

Game: Follow a Bird's Migration Story

Kids play an interactive game following the migration journeys of five species. Then, they write their own migration story.

How to: Create Window Decals to Prevent Bird Collisions
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How to: Create Window Decals to Prevent Bird Collisions

A fun and easy way to prevent migratory birds from flying into your windows.

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