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In the 19th century, coal miners took canaries to work with them to alert the miners to deadly gasses. In the 20th century, Peregrine Falcons alerted us to the cumulative impacts of deadly insecticides DDT. Now swallows and other aerial insectivores are declining rapidly. What are they telling us?
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Event Venue & Nearby Stays
13315 Buena Vista Rd NW, Edmonton, AB, Canada, Alberta T5J 2R7
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