Canadian wildfire smoke increases, 40 bird species less frequent in New York after scientists match smoke pollution to observations of 99,000 birds
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July 21, 2026
When pollution levels rise, black-and-white warblers (Mniotilta varia) are less likely to appear. Smoke from record-breaking wildfires in Canada has not only reduced air quality in parts of the United States in recent years. Wildfires are making it…