Statewide Fundraiser & Nature Celebration

Friday, May 14 – Saturday, May 15

Bird-a-thon has been Mass Audubon's largest annual fundraiser since 1983. But this year's event is particularly special because we're celebrating Mass Audubon's 125th anniversary! Founded in 1896 by two Boston women who used their voices to stop the slaughter of birds for fashion, Mass Audubon has been an independent organization at the forefront of conservation for the last 125 years.

During Bird-a-thon weekend, all teams will compete head-to-head in two ways—by earning points from birding and nature activities, AND by birding in strategic sub-groups in an effort to identify the greatest number of bird species in 24 hours. Check out the updated rules and guidelines.

So whether you decide to register for the fun of it or for the thrill of competition, you can help your team raise money that will support Mass Audubon's mission to protect the nature of Massachusetts for another 125 years.

→ Join a Team ←

Birders, nature-lovers, families, and outdoor enthusiasts of all ages and interests are welcome to participate in Bird-a-thon. Every participant is strongly encouraged to fundraise for their team, but it's not required.

• Participate and fundraise: Whether you raise a lot or a little, every dollar makes an impact! Register to fundraise >
• To bird or participate without fundraising: Don't register on this website. Sign up to participate through our simple online form instead. Complete the form >

→ Donate to a Person or Team ←

Show your support by making a donation!

You can donate to a participant, donate to a team, or donate to the overall event. Not only will you be cheering your participant or team on for Bird-a-thon, your donation will also help protect the nature of Massachusetts for people and wildlife!

2021 Event Sponsors

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

Supporting Sponsor

ZEISS

Community Sponsor

River Valley Co-op