The term “crowd-sourcing” may be new. But it’s exactly what the National Audubon Society has been doing for more than 100 years, with the Christmas Bird Count. In December, tens of thousands of people participate in this, the longest running citizen science initiative ever. Local groups set forth on a designated day and count every single bird they see or hear in a 15-mile-diameter circle. [Read more…] about A holiday tradition "for the birds"