Present year-round. Nests in a burrow it digs into a steep, bare riverbank. Hunts small fish, lying in wait from a branch overhanging the water. When it spots a fish, it dives and attempts to catch it with its long, tweezer-like beak.

The most common and best-known duck species in the region. Females are brown and well-camouflaged; males display bright colors (to attract females). Outside the breeding season, they are sociable and gather in small flocks. A regular presence in the Vonarje area.

Breeds among reeds and tall shoreline vegetation, weaving its nest on the ground. Feeds on grass seeds, small insects, and spiders. In summer, males are recognizable by their black head and throat. In the Vonarje area, observed only during the winter.

The most common heron species in the region. Shy and avoids humans from afar. Feeds on small vertebrates (fish, amphibians), and is often seen in fields where it hunts mice, voles, and moles. Nests colonially in treetops. Present year-round.

A shy bird, well-camouflaged thanks to its plumage. Usually noticed only when flushed, taking off in a distinctive zigzag flight. Winters in the area during snowless periods and when water surfaces aren’t frozen. Uses its long beak to probe the ground for various invertebrates.

The most common owl species in the region. Hunts small rodents, birds, large insects, and frogs. Regurgitates indigestible parts (hair, insect shells, bones) in the form of pellets. Possesses extraordinary hearing, allowing it to detect prey without seeing it. Calls include the classic "kju-viit" hoot and "hu-huhuuu".

A common year-round species found in light deciduous forests and forest edges with dense shrubbery. Also seen in hedgerows and abandoned orchards. Builds a characteristic dome-shaped nest made of moss, spider silk, feathers, and lichen, with a small entrance hole. In winter, joins mixed flocks with tits.

Breeds mainly in floodplain forests and bright beech or beech-oak woodlands. Nests in greater numbers only in mature stands with an abundance of deadwood. Hunts flying insects from branches at the canopy’s edge. Winters in sub-Saharan Africa.