### **The American Dipper (*Cinclus mexicanus*)**
Identification
The American Dipper is a chunky, soot-gray bird roughly the size of a starling, but with a distinctive, short-tailed silhouette that makes it unmistakable. Its plumage is a uniform slate-gray, occasionally showing a faint brownish wash on the head. Look for its most reliable field mark: a constant, rhythmic bobbing or "dipping" motion—up to 60 times a minute. Unlike the similar-sized Gray Catbird, the Dipper has a stubby tail often held at a jaunty upward angle. If you get a close look, you might catch a flash of white—not from feathers, but from its white-feathered eyelids blinking against the dark face.
Habitat & Range
This is a bird of the mountain torrent. You will find them along clear, fast-moving rocky streams from the icy reaches of Alaska and western Canada down through the Rocky Mountains into Mexico. They are rarely found far from turbulent, oxygen-rich water. Whether at sea level in the Pacific Northwest or at 12,000 feet in the Sierras, as long as the water is cold and moving, the Dipper is home.
Behaviour
The Dipper is North America’s only truly aquatic songbird. An observer will see them perched on a mid-stream boulder before they suddenly "fly" straight into the freezing current. They walk along the stream bottom, using their powerful wings to fight the buoyancy of the water. They are solitary and fiercely territorial, often defending a linear stretch of creek. Even in the dead of winter, when other birds have fled, the Dipper remains, singing a complex, liquid song that cuts through the roar of the rapids.
Diet
A master of underwater foraging, the Dipper preys primarily on aquatic insect larvae, such as caddisflies, mayflies, and stoneflies. They will also snag small fish and fish eggs. They hunt by peering into the water from the surface or diving completely submerged to flip over small stones with their beaks.
Fascinating Fact
The American Dipper possesses a specialized "third eyelid" called a nictitating membrane. This transparent lid acts like a pair of high-tech goggles, allowing the bird to see perfectly clearly while submerged in rushing water, protecting the eye from debris while it hunts for prey!