Are you a brand new birder who's never been to The Biggest Week? 
The button below has some super helpful information just for YOU! 

First Time Birders
Biggest Week's 10th anniversary!Countdown
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​Biggest Week!
BIGGEST WEEK eNEWS

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We offer our sincere gratitude to our logo artist, Darin Miller.
Visit a gallery of Darin's work HERE. 

SPECIAL ANNOUNCEMENTS

RESERVATIONS FOR PREMIER REGISTRATION NOW OPEN! 

CLICK HERE TO PURCHASE YOUR
PREMIER
​ REGISTRATION
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What is the difference between Premier Registration and General Registration? CLICK HERE to read more!

2018 Biggest Week Species Count

CLICK HERE to see a complete list of the species seen during the 2018 Biggest Week!

U.S. Senator Sherrod Brown
Welcomes Birders to ​BSBO's 9th Annual
​Biggest Week In American Birding

Subscribe to Biggest Week eNews updates for
all the latest festival information!
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For NW Ohio migration updates,
follow the BSBO Birding Blog! 

2018 BIGGEST WEEK TOUR COMPANY PARTNERS

Alongside the greatest volunteers in the world, our Biggest Week Tour Company Partners provide world-class guiding services during the festival. Look for the folks wearing the gold caps with the word GUIDE on the back. They're always happy to help you find and identify birds! 
Click the logos to visit their websites! 

MAJOR SUPPORT
PROVIDED BY

WITH SPECIAL THANKS TO OUR​ 2019 SPONSORS
​

Kirtland's Warbler Sponsorship Level 

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Bay-breasted Warbler Sponsorship Level

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Blackburnian Warbler Sponsorship Level

Cape May Warbler Sponsorship Level

Magnolia Warbler Sponsorship Level 

Yellow Warbler Sponsorship Level 

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Myrtle Warbler Sponsorship Level