I just watch your posts and add the numbers to my spreadsheet. I look for 1st, 2nd or 3rd nesting, number of eggs per nesting, number hatched and number fledged. I use the final totals to send to Cornell University for their Nationwide Bluebird counts as most of our contributors here do not report their individual data to Cornell. Cornell looks at statewide data but I let them know that my information comes from individuals across the nation and is not broken down by location.
Right now I am tracking 12 first nestings and 1 second nesting.