Breeding Bird Atlas 2

black-capped chickadee © Jake LaSuer
black-capped chickadee © Jake LaSuer

More than 650 volunteer citizen scientists worked more than 43,000 hours from 2007-2011 to complete the new Massachusetts Breeding Bird Atlas 2. This work gives us a rare glimpse in the detailed changes in our breeding birdlife, and tells the story of each species history in the state. Join us and explore the Black-capped Chickadee, the Bald Eagle, the Ruby-throated Hummingbird, the Great-horned Owl and more than 200 other species.

The results of this work are valuable treasure for the future of bird conservation in Massachusetts. They give us a clear picture of the range of all species that breed in the Commonwealth, and when compared to Atlas 1 they give us clear proof of the changes in our breeding birdlife since 1979.

The Massachusetts Breeding Bird Atlas 2 is now available to download as an eBook through iTunes. Soon it will be available as a print on demand traditional book. You can also explore the data and read the State of the Birds 2013 online.

Go Birding

spotting scope

Mass Audubon's wildlife sanctuaries offer excellent opportunities to see and learn more about the birds of Massachusetts. Learn More

Support Bird Conservation

Some of our most familiar and beloved birds—such as the American kestrel, eastern meadowlark, and Baltimore oriole—are not as abundant as they once were across the state. We need your support to continue important research to help these bird populations. Learn More