Owls, swans, pelicans and Danube
For the year Long-eared owls ratherVidin to overwinter. The owls preferred a linden trees, birches and catalpa.
The long-eared owl is a medium-sized owl, 31–40 cm (12–16 in) in length with an 86–100 cm (34–39 in) wingspan and a body mass of 178–435 g (6.3–15.3 oz).This nocturnal species is perhaps most easily seen perched in a tree in its daytime roost, sometimes in small groups during the winter months.Overall, these owls are secretive, and are rarely seen.
It nests in trees, often coniferous, using the old stick nests of other birds such as crows, ravens and magpies and various hawks. The average clutch size is 4–6 eggs, and the incubation time averages from 25–30 days. It will readily use artificial nesting baskets. An unusual characteristic of this species is its communal roosting in thickets during the winter months. The young have a characteristic call, likened to a rusty hinge.
The long-eared owl hunts over open country by night. It is very long winged, like the similar short-eared owl, and glides slowly on stiff wings when hunting. Its food is mainly rodents, small mammals, and birds. In Europe it faces competition from the tawny owl and is most numerous in localities where the tawny is absent, notably in Ireland, where it is the dominant owl.
Over the past few years in the region of Vidin and Danube wintering birds that used to fly in the Southern states. Pelicans and swans are the most attractive. In the summer also fly birds unknown in this area before, white-tailed eagle, golden oriole and others. Seagulls became permanent residents along the Danube from 1974.
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