The Biggest Week in American Birding

Thanks for another wonderful Biggest Week!
We'll see you next year for The Biggest Week: May 4-13, 2018.
Please note that all dates, times, and other details on this website refer to the 2017 festival. Information will be updated for 2018 early next year.

2017 SPONSORS

2017 eBIRD LISTS

2017 PHOTOS

FREQUENTLY CLICKED LINKS:

Festival eNews

Press Page

Advertise with us!

Conservation initiatives

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

The 2017 Biggest List is here!

Click here to check out the official "Biggest List" for the entire festival! Over the course of the 10-day festival, leaders and guides saw a total of 235 species and 35 warbler species. Despite the blustery and rainy start to the week, we ended up only one species shy of last year's grand total.

HOT OFF THE PRESSES!
THE 2017 BIGGEST WEEK
VISITORS' GUIDE IS HERE!

Click the image to view the digital version.

Biggest Week Conservation Fund
Expand. Enhance. Enjoy.

Logo by Scott Arvin

Promoting the cause of bird conservation is at the heart of The Biggest Week. This year, The Biggest Week Team at Black Swamp Bird Observatory proudly introduces THE BIGGEST WEEK CONSERVATION FUND.

100% of the proceeds donated to The Biggest Week Conservation Fund will be used for improving and expanding habitat for birds.

DONATE NOW

For NW Ohio migration updates,
follow the BSBO Birding Blog!

Looking for Lodging?

Planning your visit to NW Ohio and looking for lodging? START HERE!
These businesses support bird conservation through membership in the Black Swamp Birds and Business Alliance!

eBird Tips for Magee Marsh and Ottawa NWR

2017 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!