Flora and fauna in Slovakia – the black stork

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The black stork is an unmistakable bird species. The adult has mainly black plumage with white underparts, long coral red legs and a long pointed beak. The beak and eye areas are the same colour as the legs, and the black plumage has an intense greenish-purple sheen. Adults weigh between around 2.4 kg and 3.2 kg. Black storks are distributed throughout most of Europe and Asia, and most forest areas of Slovakia are nesting sites for these birds. They typically nest in mature deciduous and mixed forests, preferring areas with wetlands and watercourses where they can forage for food. They select large trees with strong horizontal branches and show high fidelity to breeding sites and nesting trees. The base of the nest is formed by thick branches, while the interior is lined with twigs, clumps of grass, lichens and moss. The female lays two to four eggs. Both parents feed the fledglings by regurgitating food onto the nest floor. Black storks feed on smaller fish, amphibians, insects, gastropods, small mammals and small birds. They migrate to wintering grounds mainly in August and September. In Slovakia, the black stork is a protected species.