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Global Big Day 2021

May 8

Be a part of birding’s biggest team! Global Big Day is an annual celebration of the birds around you. No matter where you are, join us virtually on 8 May and share the birds you find with eBird.

Participating is easy—you can even be part of Global Big Day from home. If you can spare 5 or 10 minutes, report your bird observations to eBird online or with our free eBird Mobile app. If you have more time, submit checklists of birds throughout the day. You never know what you might spot. Your observations help us better understand global bird populations through products like these animated abundance maps brought to you by eBird Science.