Everything you need is at the GBBC website:
Each year the Cornell Lab of Ornithology and the Audobon sponsor the GBBC. They rely on participants to help spread the word and encourage more new people to join in. These Ambassadors distribute flyers in their community, hold workshops, and talk to the press.
If you’re interested in doing more to promote the count, visit GBBC Ambassador page.
Tell me more about Atlanta's Winter Birds: