Project FeederWatch

Made for anyone with a bird feeder and a window. The season runs from November to April, and you count the birds at your feeder for as much or as little time as you like, weekly or just once all winter. Run by the Cornell Lab of Ornithology and Birds Canada, it costs $18 a year for US residents, while Canadians take part by donating any amount to Birds Canada. Winter data like this is hard to get any other way. In Florida, FeederWatch counts showed the winter population of the Painted Bunting declining steadily since the 1980s, which prompted a state monitoring program.