The 'Grasshopper' Hawk's High-Stakes Migration
Swainson’s Hawks make an incredible journey every year, migrating 12,000 miles round-trip from North America’s prairies to Argentina’s pampas. What makes them truly unique is their diet. Most hawks hunt rodents and reptiles, but Swainson’s Hawks switch to insects, feasting on grasshoppers and locusts in South America. In the 1990s, this diet nearly led to disaster when pesticides in Argentina killed over 20,000 hawks in two years. But a successful international conservation effort saved them.
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