Lights Out programs across North America

Lights Out

Birds collide with buildings, especially windows, with astonishing frequency. A 2014 study in the journal The Condor found that between 365 and 988 million birds are killed each year by collisions with buildings in the United States. And in 2019, research published in Borders of ecology and environment revealed that Chicago, Houston and Dallas are the most dangerous cities for migratory birds in the lower 48 states during spring and fall.

Fortunately, conservation groups and birdwatchers are working to alleviate the problem. You can help! Below is a list of 31 programs in North American cities (listed alphabetically by state or province), plus Costa Rica, that encourage building owners to turn off unnecessary lights during periods of migration. Some of the programs also manage volunteer efforts to collect birds that strike buildings and rescue those that are injured. To get involved, visit an organizer’s website.

Light up San Francisco

San Francisco, California
Golden Gate Audubon

Lights on Denver

Denver, Colorado
Denver Parks and Recreation

Lights out Wilmington

Wilmington, Delaware
Delmarva Ornithological Society

Lights out DC

washington d.c.
City wildlife

Lights Out Atlanta and Project Safe Flight Atlanta

Atlanta, Georgia
Audubon Society of Atlanta

Chicago Bird Collision Monitors

Chicago, Ill.
Chicago Audubon Society

Lights over Chicago

Chicago, Ill.
Chicago Audubon Society

Lights out Indy

Indianapolis, Indiana
Amos ButlerAudubon

Light up Baltimore

Baltimore, Maryland
Baltimore Bird Club

Bird Strike Team

Boston, MA
Mass Audubon

Bird Strike Team

Boston, MA
Mass Audubon

Great Lakes Safe Passage

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Detroit, Ann Arbor and other Michigan cities
Detroit Audubon, Michigan Audubon and Washtenaw Audubon

Minnesota Lights
Minneapolis, St. Paul, Bloomington, Rochester and other Minnesota cities
Minnesota Audubon

Light up New York

New York, New York
Audubon of New York

Safe Flight Project

New York, New York
Audubon of New York

Charlotte extinct

Charlotte, North Carolina
Mecklenburg Audubon

Bird Collision Project – Duke University

Durham, North Carolina
duke university

Raleigh goes out

Raleigh, North Carolina
Waking Audubon

Lights Out Winston Salem

Winston-Salem, North Carolina
Forsyth Audubon

Ohio goes extinct

Akron, Canton, Cincinnati, Cleveland, Columbus, Dayton and Toledo, Ohio
Ohio Bird Conservation Initiative

Oklahoma City Safe Passage

Oklahoma City, Oklahoma
Oklahoma CityAudubon

Safe Wings Ottawa

Ottawa, ON
Ottawa Field-Naturalists’ Club

FLAP Canada

Toronto, Ontario
Fatal Light Awareness Program

Lights off

Bend, OR
East Cascades Audubon Society

Lights out Portland

Portland, OR
Portland Audubon

BirdSafe Pittsburgh

Pittsburgh, Pennsylvania
Carnegie Museum of Natural History

Lights on the salt lake

Salt Lake City, UT
Tracy Aviary

Charlottesville Area Window Watch

Charlottesville, Virginia

Wisconsin Night Guardians for Songbirds

Milwaukee, Wis.
Wisconsin Humane Society


The goal of this program is to help protect the natural dark night along bird flyways.
Light Pollution Abatement Committee of the Royal Astronomical Society of Canada
Facebook page

Birds And Windows Collision Project Costa Rica

A project to protect birds from windows in Costa Rica.

More resources

Just save the birds

The website of Heidi Trudell, one of the leading bird/window collision researchers.

Acopian Center for Ornithology, Muhlenberg College

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Resources from Dr. Daniel Klem, an ornithologist who has studied the problem of window collisions in depth.

Updated on 03/23/20

If you know of a program that should be listed here but isn’t, let us know!

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