This video from the USA says about itself:
17 Dec 2013
Watch the video to learn more about the world-wide Great Backyard Bird Count and how you can take part in the 17th annual event from February 14-17, 2014. It’s free, it’s easy, and it’s fun! Visit www.BirdCount.org for birding tips, great photos, and much more.
From the Cornell Lab of Ornithology in the USA:
Everyone’s favorite midwinter bird count is happening this February 14–17, and for the second year in a row it’s open to anyone, anywhere in the world. The Great Backyard Bird Count is a free event now in its 17th year, and by participating you’re helping give scientists their biggest, broadest single-moment snapshot of bird populations.
Last year nearly 138,000 people participated, counting 33.4 million birds and 4,258 species. A newly redesigned website is full of great features like a gorgeous display for your photo submissions, how-to materials, data exploration tools, and tricky bird ID help (our blog has more on what’s new). Come count with us.
See also here.