Reports presented on the XIII International Ornithological Conference of North Eurasia

Tilba, P.A., Mnatsekanov, R.A. Peregrine Falcon (Falco peregrinus brookei) in the North Caucasus.
Current status of the population of Peregrine Falcon in the region is estimated as stable. In recent years, the population growth and tendency to increase reproductive capacity is observed.

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Sharikov, A.V., Volkov, S.V., Basova, V.B., Grinchenko, O.S., Ivanov, M.N., Makarov, A.V., Sviridova, T.V. Peculiarities of the number dynamics of birds of prey and small mammals in the northern and southern suburbs of Moscow.
On the basis of nine yearm studies on two permanent plots it was analyzed the relationship of dynamics of Falconiformes and Strigiformes with abundance of small mammals. Among other things, it was found that:
− changes in the number of different species of breeding birds of prey at two permanent plots didn’t go synchronously;
− number dynamics of birds of prey is largely determined by peculiarities of specific conditions of a habitat, not just by the abundance of small mammals in a particular year;
− clear correlation between changes in the number of birds of prey and small mammals (as a whole and for individual species) was not detected, except for the Long-eared and Short-eared Owls;
− stable relationship of number dynamics of birds of prey is traced only if at once take into account fluctuations of abundance for several main prey species.

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