Entry into the North American Bird Phenology Program t-shirt contest. The Bird Phenology Program is an awesome project of crowd-sourced citizen science! From 1880 – 1970, there was a national program for bird watchers to write down their observations (place, time, season, species, number seen, etc) and mail them into a central location. Now, volunteers are transcribing scans of those cards into a database of free, public bird population and migration data.