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    • GENERAL REGISTRATION
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  • Festival Schedule
    • SUMMARY SCHEDULE
    • 2025 KEYNOTE SPEAKERS
    • Presentations and Workshops
    • Field Trips >
      • All Field Trips
      • eBIRD CHECKLISTS
      • Inclusive Field Trips
      • SITE GUIDES
    • Special Events >
      • book signings
      • OPENING CEREMONY
      • BIRDERS' BANQUET
      • BIRD TRIVIA NIGHT
      • BIRD TATTOO CONTEST
      • Karaoke Night
    • BIRDER'S MARKETPLACE
    • OPTICS ALLEY
    • EVENING SOCIALS
    • Morning Flight Count
  • Birding Info
    • INFO FOR NEW BIRDERS >
      • HOW TO GET STARTED IN BIRDING
      • BINOCULARS FOR BEGINNERS
    • BIRDING LOCATIONS
    • BSBO's Bird Migration Profiles
    • Timing of Migration >
      • Spring Migration
      • Fall Migration
  • Area Info
    • LODGING
    • DINING & SPIRITS
    • SHOPPING AND SERVICES
    • HOSPITALS AND PHARMACIES
  • Home
  • FESTIVAL INFO
    • Biggest Week Blog
    • 2024 Festival Recap
    • FREQUENTLY ASKED QUESTIONS
    • FESTIVAL eNEWS & SOCIAL MEDIA
    • VISITORS' GUIDE MAGAZINE
    • 2025 Sponsors
    • About Our Guides
    • BIGGEST WEEK APP
    • FESTIVAL LOCATIONS
    • CONTACT US
  • Get Involved
    • VOLUNTEER
    • BECOME A 2025 SPONSOR
  • Registration
    • GENERAL REGISTRATION
    • REFUND POLICY
  • Festival Schedule
    • SUMMARY SCHEDULE
    • 2025 KEYNOTE SPEAKERS
    • Presentations and Workshops
    • Field Trips >
      • All Field Trips
      • eBIRD CHECKLISTS
      • Inclusive Field Trips
      • SITE GUIDES
    • Special Events >
      • book signings
      • OPENING CEREMONY
      • BIRDERS' BANQUET
      • BIRD TRIVIA NIGHT
      • BIRD TATTOO CONTEST
      • Karaoke Night
    • BIRDER'S MARKETPLACE
    • OPTICS ALLEY
    • EVENING SOCIALS
    • Morning Flight Count
  • Birding Info
    • INFO FOR NEW BIRDERS >
      • HOW TO GET STARTED IN BIRDING
      • BINOCULARS FOR BEGINNERS
    • BIRDING LOCATIONS
    • BSBO's Bird Migration Profiles
    • Timing of Migration >
      • Spring Migration
      • Fall Migration
  • Area Info
    • LODGING
    • DINING & SPIRITS
    • SHOPPING AND SERVICES
    • HOSPITALS AND PHARMACIES
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With Special Thanks to Our Co-Hosts

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Subscribe to the​ Biggest Week eNews for all the latest updates!

Get Real-Time Bird Sightings!

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Do you want real-time bird sightings from Biggest Week guides? This year, we will be using Bluesky! Follow @biggestweekbirding.bsky.social to stay up to date on where your target birds are during the festival!
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General Registration Now Open!

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It’s time to register for the 2025 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 or click the link in the comments to begin registering.

We look forward to sharing an aMAYzing festival with you!​
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2025 Summary Schedule Now Available!

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Our Summary Schedule is now available! This allows for an easy day-by-day outline of all of the exciting activities happening at the Biggest Week! As we get ready for registration to open, use this document to make your list of most-wanted events! 
Click to visit the summary schedule page

Introducing the 2025 Keynote Speakers!

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To learn more about all of these exciting keynote presentations, visit the 2025 keynote page on the Biggest Week website by clicking the button below!
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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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Without the support of many organizations, companies, and agencies, the Biggest Week wouldn’t be possible. ​Click below to see all of our aMAYzing partners and collaborators!
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Thank you to our 2025 sponsors!

Kirtland's Warbler Level - $25,000+

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Blackburnian Warbler Level - $15,000+

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Magnolia Warbler Level - $10,000+

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Hooded Warbler Level $5,000+

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Cape May Warbler Level $2,500+

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Yellow Warbler Level $1,000+

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© 2009 - 2025 The Biggest Week in American Birding ®
A Birding Festival in Northwest Ohio: "The Warbler Capital of the World"
All rights reserved

www.biggestweekinamericanbirding.com