Shorebirds on alert
A flock of shorebirds, including dunlin (Calidris alpina), sanderlings (Calidris alba), and western sandpipers (Calidris mauri) turn their eyes to the sky after the flock was spooked by an aerial predator. Image taken on Limantour Beach, Point Reyes National Seashore, Marin County, California.
Stock Photo BSA10-4410
