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With Special Thanks to Our Co-Hosts
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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!
Thank you to our 2025 sponsors!
Kirtland's Warbler Level - $25,000+
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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