40 bird species were seen less often in New York when Canadian wildfire smoke increased, after scientists matched smoke pollution with 99,000 bird observations
Black-and-white warbler (Mniotilta varia) is less likely to be seen when pollution level rises. Smoke from Canada’s record-breaking wildfires in recent years have done more than reduce air quality across parts of the United States. A new study suggests the wildfires made many birds harder for people to spot in New York State during the…