Horned Grebe Behavior: Feeding, Courtship, and Family Life

What Is Horned Grebe Behavior?

Horned grebe behavior refers to the daily and seasonal activities of the horned grebe (Podiceps auritus), a small diving waterbird of prairie wetlands and northern lakes. These behaviors center on feeding, courtship, and raising young. When you watch a horned grebe, you will notice it diving for small fish and aquatic insects, performing paired courtship dances in spring, building floating nests anchored to vegetation, and carrying chicks on its back. Understanding horned grebe behavior helps birdwatchers know what to look for and why the birds act as they do.

How Do Horned Grebes Feed?

Horned grebes feed by diving underwater, using their feet to propel themselves as they chase small fish, aquatic insects, crustaceans, and other invertebrates. They are visual hunters and often dive in open water, staying submerged for 10 to 30 seconds. To spot feeding horned grebes, scan the water for a bird that disappears with a small leap and resurfaces some distance away. Binoculars help you see the bird's red eye and short bill when it comes up with prey. In early morning or late evening, feeding activity often increases. If you keep field notes, record the time of day, water depth, and what the grebe appears to catch; this sharpens your observation skills over a season.

Because horned grebes prefer shallow wetlands with abundant aquatic life, a quiet approach by kayak or from a shoreline blind can bring you close without disturbance. Watch for birds that dive repeatedly in one area—a sign of a good feeding patch. You may also see them pluck feathers and swallow them; this unusual habit helps protect the digestive tract from fish bones. It is one more small detail that makes horned grebe behavior fascinating.

What Are Horned Grebe Courtship Displays Like?

Horned grebe courtship displays are elaborate, synchronized performances between a male and female. In spring, pairs engage in a “penguin dance,” rising upright out of the water and paddling side by side. They may also present water weeds to each other, shake their heads, and call in duet. These displays strengthen the pair bond and establish nesting territory. To witness courtship displays, visit a prairie marsh or pothole lake from late April through June, ideally in the early morning when the water is calm and the light is soft. Use a spotting scope from a distance, as close approach can interrupt the dance.

Look for two grebes facing each other, then suddenly stretching their necks upward and running across the water surface. This “rushing” display is one of the most exciting moments in horned grebe behavior. If you are photographing, set your camera to a fast shutter speed to freeze the splashing action. Remember that courtship is a vulnerable time for birds; keep movements slow and voices low.

Where Do Horned Grebes Build Nests?

Horned grebes build floating nests anchored to emergent vegetation such as cattails, bulrushes, or pondweed. The nest is a soggy mound of plant material, often placed in shallow water. Because the nest floats, it rises and falls with water levels, protecting the eggs from minor flooding. To find a nest without disturbing the birds, scan marsh edges with binoculars for a low, wet heap among the reeds. If you are in a canoe, stay in open water and use a telephoto lens or scope; never approach a nest closely.

Both parents help build the nest and take turns incubating the 3 to 6 eggs. Incubation lasts about 22 to 25 days. During this time, the sitting bird may slip quietly off the nest if danger appears, covering the eggs with vegetation. This behavior, called nest covering, hides the eggs from predators. Patient observers may see the exchange at the nest, when one adult returns and the other leaves. Note the time of day and weather in your field notebook; grebes are more attentive during cool or rainy periods.

How Do Horned Grebes Care for Their Young?

Horned grebe parental care is shared by both adults and includes brooding, feeding, and carrying chicks on the back. The chicks are precocial, meaning they can swim soon after hatching, but they depend on their parents for warmth and food for several weeks. The striped downy chicks ride on a parent's back, tucked under the wings, even while the adult dives. When you see a horned grebe with a lump on its back, look closely; you may spot tiny feet or a small bill poking out.

To observe family life, watch from a distance with a scope. The adults dive and bring small fish or insects to the chicks. Chicks beg with soft peeping calls. In late summer, the young gradually learn to dive and feed themselves. Keep a respectful distance; if an adult gives an alarm call or swims away with chicks on its back, you are too close. Back away slowly and find a more distant vantage point.

Seasonal Changes in Horned Grebe Behavior

Horned grebe behavior changes with the seasons. In spring, birds arrive on breeding wetlands and begin courtship and nesting. Summer focuses on raising young. By late summer, adults molt into winter plumage and become flightless for a few weeks. In fall, they gather on larger lakes and migrate to coastal waters. To follow the seasonal rhythm, visit the same wetland every two weeks and note the birds' numbers and activities. You may see the transition from courtship displays to carrying chicks to quiet, gray-plumaged birds resting before migration.

Weather also matters. On windy days, grebes may stay closer to sheltered shorelines. On calm, sunny mornings, they feed in open water. Dressing for the conditions—layered clothing, waterproof boots, and a windbreaker—makes your outing more comfortable and quieter.

Comparing Horned Grebe Behavior to Other Grebes

This comparison helps when you are on a wetland with multiple grebe species. The horned grebe's neat, high-contrast breeding plumage and distinctive golden ear tufts set it apart. With practice, you can identify behavior alone—like the precise, paired dance of horned grebes in spring.

Practical Tips for Observing Horned Grebe Behavior

To enjoy horned grebe behavior responsibly, prepare for your outing with these steps:

1. Choose the right time: early morning or late evening during the breeding season (May–July) is best for active feeding and displays.
2. Bring proper optics: binoculars (8x42 or 10x42) for general viewing and a spotting scope for distant nests and courtship.
3. Dress quietly and for the weather: muted colors, layers, and waterproof footwear help you blend in and stay comfortable.
4. Move slowly and stop often: sudden movement can flush birds. Use natural cover like shrubs or cattails.
5. Keep a field notebook: record date, time, weather, number of birds, and specific behaviors you observe. Over time, patterns emerge.
6. Respect the birds: never approach a nest, chase a bird, or play recorded calls to attract them. Back away if birds show signs of stress.

Watching horned grebes requires patience, but the reward is a deeper connection to the wetland world. Each dive, dance, and chick ride is part of a story you can learn to read.