To identify distant waterbirds, learn their flocking behavior

In winter, identifying waterbirds is often challenging because the birds are too far away to see details. Understanding flocking behavior can help. Read More “To identify distant waterbirds, learn their flocking behavior”

At the upper right, a large and densely packed group of Ruddy Ducks rests with tails raised while two Ruddy Ducks actively forage at left (with tails down). In the foreground is a typically loose and small group of resting Pied-billed Grebes. Art by David Sibley