Dozens of species of shorebirds have been observed at Roberts Bank in British Columbia, Canada. Hundreds of thousands of them migrate through this spot each year, many of them stopping on the mudflats. The clouds of Western Sandpipers, in particular, draw birders like Jason Puddifoot.…

Dozens of species of shorebirds have been observed at Roberts Bank in British Columbia, Canada. Hundreds of thousands of them migrate through this spot each year, many of them stopping on the mudflats. The clouds of Western Sandpipers, in particular, draw birders like Jason Puddifoot.…

The Western Sandpiper makes an annual migration from its winter home in South America to Alaska, where it breeds in summer. For years, scientists thought the birds fueled their journey by foraging for aquatic invertebrates, like beetles and mussels, along the way. But new research suggests…

The Western Sandpiper makes an annual migration from its winter home in South America to Alaska, where it breeds in summer. For years, scientists thought the birds fueled their journey by foraging for aquatic invertebrates, like beetles and mussels, along the way. But new research suggests…