The Big Sit! is a free, annual, international birding event originated by the New Haven, CT Bird Club in 1992. It is open to anyone, anywhere in the world. All individuals or groups are eligible to participate; just follow The Big Sit! rules and submit your results. The Big Sit! can be as competitive or non-competitive as you would like, but it is meant to be fun. Participants can choose to do their Big Sit! on either Saturday or Sunday. The Big Sit! is like a Big Day or a Bird-a-thon. Individuals or teams find as many species as possible in 24 hours. There is one critical difference – all observations must be made from within a circle no more than 17 feet (5.2 meters) in diameter.
Free and open to anyone — individuals and teams — all over the world.