From the birdcount.org website (link)
Each February, for four days, the world comes together for the love of birds. Over these four days we invite people to spend time in their favorite places watching and counting as many birds as they can find and reporting them to us. These observations help scientists better understand global bird populations before one of their annual migrations.
Please keep in mind this is a Citizen’s Science project and VMS time entry approval is contingent upon your entering your observations via one of the methods indicated in the Participation guidance.
VMS code to use: FR: Field Research/Citizen Science (Service Project)
VMS Description: Great Backyard Bird Count