The birds of Pasvik / E. I. Khlebosolov, O. A. Makarova, O. A. Khlebosolova [et al. ; English transl. Nikita Chernetsov]. - Ryazan : Golosgubernii, 2007. - 175 с. : ил., портр.

In mountain birch forests the pre­ ferred habitat of the Ring Ouzel are the coasts of rivers and lakes with soft soil and high herbaceous vege­ tation. N. V. Zuev tundra this species is as a rule lacking. However, some individuals do occur in the scrub along mountain streams or on lake shores. Redwings, Common Redpolls, Meadow Pipits, and partly Bluethroats occur across the widest range of altitudes. They are quite common in all the three belts of the birch forest and in the mountain tundra. The most typical representative o f the m ountain tundra and bare rocks is the Northern Wheatear. The Snow Bunting breeds in the rock belt. This species prefers subalpine meadows and rocky habitats and thus occurs only high in the mountains and practically does not descend to the mountain tundra and to the forest belt. The mountain tundra forest has low specific diversity as compared with sim i­ lar avian communities o f more southern parts of Pasvik. It includes fewer species than the mixed pine and birch forest in the middle flow o f the Pasvik (Khlebosolov et al. 2006a). Several reasons for considerable difference between the specific structure o f birds o f mountain birch forests and of forest avian communities o f the upper and middle Pasvik may be distinguished. One reason is low habitat diversity in the mountain birch forest. Wide river valleys, mires, and other habitats that harbour many avian species, do not occur there. The forest ecosystems are represented only 111