Birdathons are a great way to help out and I highly recommend them! Typically, a birdathon is used as a fundraiser for a state or local Audubon, state park, or similar organization. As the participant, you pledge to go out on a certain day and spot as many species of birds as you can. Your friends and family agree to sponsor you, either by pledging a fixed amount, or by pledging an amount per species of bird (for example, a dollar per species). You don't have to be an expert birder, and there is no contest; everyone is there working as a team to help the organization raise money for its educational programs and nature preserves. You'll meet some very nice people, learn a lot, and have a ton of fun in the process!