Shrinking North American bird population is getting worse faster. Experts blame agriculture, warming

Shrinking North American bird population is getting worse faster. Experts blame agriculture, warming

WASHINGTON (AP) — Billions fewer birds are flying through North American skies than decades ago and their population is shrinking ever faster, mostly due to a combination of intensive agriculture and warming temperatures, a new study found. Nearly half of the 261 species studied showed big enough l...

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