Do you love to watch birds? Would you like to help scientists in the field of ornithology while you watch birds? eBird.org is a website and birding community where you can submit your bird watching observations to be used by the scientists at the Cornell Lab of Ornithology and the National Audubon Society. According to eBird:
A real-time, online checklist program, eBird has revolutionized the way that the birding community reports and accesses information about birds… eBird’s goal is to maximize the utility and accessibility of the vast numbers of bird observations made each year by recreational and professional bird watchers. It is amassing one of the largest and fastest growing biodiversity data resources in existence… The observations of each participant join those of others in an international network of eBird users. eBird then shares these observations with a global community of educators, land managers, ornithologists, and conservation biologists. In time these data will become the foundation for a better understanding of bird distribution across the western hemisphere and beyond.
In addition to submitting your own observations you can explore data gathered by the entire community, displayed on maps, charts, and graphs.