By Susan Murphy (KPBS)
San Diego is a stopover point along the the Pacific Flyway migration path that stretches from South America to Alaska. It’s a crisscross this time of year, with winter flocks returning north and spring birds just arriving. More than 520 species have been documented in the county — the most in the nation, but that number is expected to decline in coming years as climate change takes hold.
“I would say that every species in San Diego County could be threatened by climate change, said Phil Unitt, curator of birds and mammals at the San Diego Natural History Museum.
“Each species is going to be its own really complex story,” Unitt explained, as he walked along a path in the San Diego National Wildlife Refuge, using his special chirping call to attract nearby birds.
Unitt said annual migration patterns are being disrupted by rising temperatures, causing some species to seek new habitats that are wetter and cooler.
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