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With Special Thanks to Our Co-Hosts
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2026 General Registration NOW OPEN!
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General registration for the 2026 festival is NOW OPEN!
It’s time to register for Black Swamp Bird Observatory's 2026 Biggest Week In American Birding! We hope you are as excited about the incredible lineup of field trips, workshops, keynotes, and events as we are! Visit our website to begin registering! We look forward to sharing an aMAYzing festival with you! For help, email [email protected]. 
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The 2026 Summary Schedule is Now Available!
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BSBO is thrilled to share the 2026 summary schedule! Check out the full lineup of festival events using the button below.
Premier Registration is still available! Want first dibs on trips and workshops? Premier registration opens 48 hours before general registration, giving you early access to the most popular experiences. 🗓 General Registration: Friday, February 20 at 12 p.m. ET 
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Official Premiere of ListersBlack Swamp Bird Observatory is super stoked to announce that The Biggest Week in American Birding will host the premiere screening of Listers, the hilarious birding documentary that’s taking the birding world by storm! The movie has already been viewed on YouTube more than 1.5 million times, and we'll offer a special opportunity to watch the movie with filmmakers themselves!
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2026 Keynote SpeakersJoin us in welcoming these inspiring voices from across the birding world!
Each of these remarkable individuals brings a unique perspective, from art and advocacy to science and storytelling, promising a week filled with insight, inspiration, and passion for birds.
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Field Trip Site Guides!
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Read the Biggest Week in American Birding Field Trip Site Guides! This library of resources helps share information about one of the most popular aspects of the festival. In these site guides, you will find information about the locations the trips visit, accessibility information, meeting locations, target species, and how to get your eBird checklists following the trip.
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Thank you to our 2026 sponsors!
Interested in becoming a sponsor? Visit our Sponsorship Page to learn more!
The Biggest Week wouldn't be possible without the support of our sponsors, partners, and collaborators.
View all of our partners and collaborators by clicking the button above!
View all of our partners and collaborators by clicking the button above!
Presenting Kirtland's Warbler Level Sponsor - $25,000+
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