Swans are among the most majestic and recognizable birds of the Drava River. Their large white bodies and elegant movements make them a striking presence on the calm stretches of the river, backwaters, and floodplain lakes. The mute swan (Cygnus olor) is the most common species found along the Drava, and it is a year-round resident in many parts of the river basin.

Mute swans prefer shallow, slow-moving or still waters where aquatic vegetation is abundant. They feed primarily on submerged plants, which they reach by dipping their long necks below the water’s surface. While generally quiet, they can produce soft hissing sounds, especially when defending their territory or young.

These birds are known for forming long-term monogamous pairs and are highly territorial during the breeding season. They build large nests close to the water's edge, often hidden among reeds or willows. The female lays a clutch of 5 to 8 eggs, and both parents are actively involved in guarding the nest and raising the cygnets.

Swans contribute significantly to the river's ecological health. By feeding on aquatic vegetation, they help maintain a balance in plant growth and influence the structure of wetland habitats. Their presence also enhances the aesthetic and touristic value of the Drava, making them a favorite among birdwatchers and nature photographers.

Although swans are generally well adapted to life along the Drava, they are still vulnerable to habitat disturbance, water pollution, and human interference—especially from recreational boating or feeding with inappropriate food like bread. Conservation efforts focused on protecting wetlands and minimizing human impact are essential to support their populations.

In essence, swans are not only symbols of grace and loyalty but also indicators of a well-preserved and functioning freshwater ecosystem. Their presence along the Drava reflects the river’s ecological richness and the importance of maintaining it for future generations.