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Understanding The Factors That Drive Populations - A Study in Chimney Swifts
Aerial insectivores - swallows, nighthawks, martins, flycatchers, and swifts – are showing some of the greatest population declines among birds, and it's unclear exactly why. Chimney swifts, whose populations have declined by 52% in PA over the last 60 years, serve as a “canary in the coal mine” for this suite of species. This presentation