On the north Atlantic coast, a slate-gray sandpiper picks among the barnacles and mussels that encrust a jetty’s massive boulders. At the same moment, a parallel scene unfolds on the north Pacific Coast. A slate-colored sandpiper emerges from the salt spray to forage over a windswept jetty. These look-alikes are the Purple Sandpiper of the Atlantic (pictured here) and the Rock Sandpiper of the Pacific. They embrace a seemingly perilous life amid storm-tossed boulders instead of probing sheltered mudflats like so many of their kin.

More info and transcript at BirdNote.org. 

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