Great crested grebe

The Great crested grebe is renowned for its territorial behaviour and courtship displays in the breeding season. It builds floating nests out of vegetation, which it places on the surface of the water, protected from predators. It is a migratory species: in late autumn, the birds leave for warmer parts of southern Europe and return to the Danube Delta in spring. The birds form monogamous pairs, with both parents actively involved in caring for the chicks.

Podiceps cristatus

Description and how to observe Great crested grebe:

The Great crested grebe is a graceful species of waterfowl with a unique appearance, with a white plumage, slender neck and distinctive crest of feathers around the head, more pronounced in the breeding season. Body length varies between 46-51 cm and wing span can reach about 85-90 cm. It can most easily be seen in the quiet areas of the Danube Delta, especially on shallow lakes and canals. During the mating season, it is easily spotted due to its spectacular "dance", a specific manifestation of the courtship ritual.

What it feeds on Great crested grebe:

The Great crested grebe is carnivorous, feeding mainly on small fish, but also on aquatic insects, crustaceans and small amphibians. It catches its prey by diving quickly and accurately, often staying close to the water's surface to watch its prey's movements before it submerges. Favourite food sources abound in the Danube Delta, making this region essential for the species' survival.

Threats:

The species faces multiple threats, including habitat loss due to human activities, water pollution and climate change. The species is also vulnerable to disturbance from over-tourism and heavy fishing. Habitat disturbance and toxic pollution are jeopardising not only the Great crested grebe, but also other bird species in the Danube Delta.

Ecological role:

Great crested grebe play an essential role in the Danube Delta ecosystem, maintaining the natural balance in fish and insect populations. It also contributes to the biodiversity and overall health of the aquatic habitat, serving as an indicator of water quality and the health of the aquatic environment.

More information about Podiceps cristatus:

The Great crested grebe is one of the most visible and studied birds in the Danube Delta, having a significant ecological and touristic importance. The species is protected under international conventions and Romanian legislation and is part of the Red List of threatened species. Watching this bird is a memorable experience and respecting its habitat is essential for the preservation of this species in Romania's flora and fauna.