Birds of The Danube Delta - Non-brooding Birds

Non-brooding Birds

The species of non-brooding deltaic birds were classified into the biotopes they visit while resting on the Danube Delta's territory and they are connected to by the way these biotopes are providing their food. The ornithological biotopes of the Danube Delta belong to three well-individualized habitats, namely the aquatic, the amphibian and the terrestrial ones.

The non-brooding species include: 35 winter species visit the Danube Delta only in winter; 46 passage species which cross the delta's territory only in spring and in autumn; 6 erratic ones which irregularly show up in different biotopes and 11 accidental species.

The number of biotopes increases from the aquatic to the terrestrial environment, while their dimensions follow an inverse proportionality, as they are smaller in the terrestrial and larger in the amphibian and aquatic environments.