Join us as we Focus On Nature!
Friday, May 14, 6:00 pm – Saturday, May 15, 6:00 pm

Due to COVID-19, this year's event will be a family-friendly, carbon-free, safety-focused BIRD-AT-HOME-A-THON! There are new rules and a revised point system, and the winning team will be the one that's earned the highest number of points.

How to Participate

Once you join a team you can start fundraising. From May 14-15, you can also earn points for your team by birding and/or completing nature activities. Every species a team sees will count towards our cooperative, statewide effort to spot all 286 bird species that can be found in Massachusetts during spring!

Just want to bird without fundraising? Skip the online registration process. Instead, please contact your Team Captain to join the team roster without creating a fundraiser.


Support a Mass Audubon sanctuary or program by donating to Bird-a-thon.

Your Bird-a-thon donation is greatly appreciated and helps to protect the nature of Massachusetts for people and wildlife. Donate to an individual, donate to a team, or make a general Bird-a-thon donation. To donate offline, please download and return the Bird-a-thon mail-in donation form and send it with payment to your chosen sanctuary or program.

About Bird-a-thon

Bird-a-thon, Mass Audubon’s largest fundraiser, brings together supporters from across the state to raise essential funds for nature conservation, education, and advocacy—and to compete in an exciting team birding competition. Each year, more than 800 birders work with their team members to see, hear, and identify as many bird species as possible in a 24-hour period. Team members and other supporters raise money for Mass Audubon sanctuaries and programs in honor of their participation. View last year's results >

Since Bird-a-thon began in 1983, thousands of dedicated supporters and team members have raised over $3 million for Mass Audubon, its sanctuaries, and its programs across the state.

2021 Event Sponsors

Interested in becoming an event sponsor this year? Learn about sponsorship opportunities >