Distribution Of Ardeidae During Post-breeding Period In North Azov Sea Area
V. ÃÂ. Koshelev
Materials of the surveys over nesting herons, conducted in 1988-2003 on model plots in North Azov Sea area, data about their distribution and abundance dynamics during post-breeding nomad flights are presented. About of 420 daily counts were conducted, 28 thousand of individuals from 8 species were banded. The process of formation of mass accumulations of herons was traced in breeding period on the places of feeding, rest, diurnal and nocturnal rests at steeping sites were registered. The intraspecific and interspecific relations of herons were considered during feeding. Data about the terms of arriving and flying away were presented together with terms of mass migratory flights.