This is a link to eBird a project run by Cornell University to log bird reports of all types from around the world. Tons of data about all your favorite birds and all sorts of ways to view and filter the information for all types of birds. Could be a very powerful tool for waterfowl, upland, etc. if you spend some time poking around on the site I think you will figure out what I mean. It becomes even more powerful as more and more people participate in the site by adding bird reports. I would hope if you find the site useful that you also add to it by submitting bird reports from time to time (or often) it is very easy to do.
www.ebird.org
www.ebird.org