CelloMomOnCars, "The annual Christmas Bird Count, which started in 1900, is North America's longest-running citizen science project, according to Birds Canada. And with #ClimateChange impacting #BirdMigration patterns, experts say it plays a significant role in tracking the effects of the changing climate on bird populations."
#Canada
https://www.cbc.ca/news/canada/christmas-bird-count-climate-change-1.7069878