STATISTICAL ESTIMATION OF AGE FEATURES AND PATTERNS GROWTH OF NESTLING PRECOCIAL AND ALTRICIAL BIRDS
Research of a postnatal ontogenesis of birds has discovered differences in intensity of growth precocial and altricial species. Patterns of growth of mass body and morphological structure at nestlings of a Hooded Crow (<i>Corvus cornix L</i>.) show within the limits of the various types of dynamic development expressed by the equations of some mathematical functions - polynominal (the second and third order), rectilinear and exponential. Figures of a post-embryogenesis of precocial birds in overwhelming majority of events are approximated by a parabola of the second order.