Bird-a-thon • May 14–15, 2021

Mass Audubon's Biggest Annual Fundraiser & Nature Celebration

BAT 2021 illustrated banner with bird icons

Because Nature Needs Heroes—Now More Than Ever

Bird-a-thon brings birders, nature-lovers, and families together—virtually and in-person—to celebrate nature and raise funds that provide essential year-round support for Mass Audubon's conservation, nature education, and advocacy work.

The 2021 Bird-a-thon event is particularly special because it's part of Mass Audubon's 125th anniversary celebration! Founded in 1896 by two Boston women who used their voices to stop the slaughter of birds for fashion, Mass Audubon has remained an independent organization at the forefront of conservation for the last 125 years.

No matter if you join for the fun of it or for the thrill of competition (or both!), every participant is encouraged to help their team fundraise in support Mass Audubon's mission to protect the nature of Massachusetts.

2021 Results

We're thrilled to announce the winners of the Bird-a-thon 2021 birding, points, and fundraising awards!

See the winners >

Eastern Bluebird male on a twig © Joel Eckerson
Eastern Bluebird (male) © Joel Eckerson

Here's How It Works

This year, 13 teams representing different Mass Audubon wildlife sanctuaries or programs are raising money while helping people of all ages connect with nature in communities across the state (and beyond!).

During Bird-a-thon weekend, these 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.


Show your support by making a donation!

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

The donation period for Bird-a-thon 2021 ended on Friday, June 11.

Levoshko family with their Bird-a-thon 2020 checklist © Danielle Levoshko
© Danielle Levoshko

Participate on a Team

You don't have to be a birder to take part in Bird-a-thon!

Everyone is welcome to join a team—whether you're into birds, love exploring nature, or just want a good reason to get outside on a spring day. 

Thank you to the nearly 1,000 people who participated on one of our 13 teams for Bird-a-thon 2021!

See the winning teams >

Be sure to check out the participant-submitted photos from this year's spectacular event in the Bird-at-home-a-thon 2021 Digital Gallery.

BAT Sponsors

Event Sponsorship

Sincere thanks to the following sponsors for supporting this year's event! 

Lead Sponsor

Media Sponsor


Supporting Sponsor


Community Sponsor

River Valley Co-op

Stay in the Loop!