Anyhow, I happened to come across this site and wanted to share it. Northeast Avian Data Center . This is full of fantastic information from various sources as you can see if you click on this link Explore Data. You can look at raw data using bar charts, Google Earth (wicked cool) and standardized tables.
If you are really geeky and know how to write queries or are good in Excel than you can download entire species information or state information in a raw text format and import it into Excel as a dataset which would be your own mini-data base. You can even access and download the data by state like this example for MA.
The information collected is fed in one file and comes from various sources including:
-Breeding Bird Survey
-Great Backyard Bird Count
-International Shorebird Survey
Anyhow, just thought I would share for those of you who are interested.
UPDATE: I noticed the data is only until 2008 so I emailed Marhsall Iliff (from Cornell & eBird) who also runs the data management of this site and he sent me another link that shows detailed and up to date information for all of the states for those of you not in the North East. The link to that is Avian Knowledge Network .This information gets updated every evening if you really have no life.....er....um......I mean if you really are into crunching data.
Take care and I am hoping to do some birding today after work. I am totally getting the "itch"