Egg-shell paint of birds and natural selection. - N.N. Balatsky. - Berkut. 3 (1). 1994. - P. 56-57.
The origin of the egg paint is discussed. It is supposed that the egg-shell paint is primary. It determines the type of nesting: birds with the good visible eggs nest closed. Species, that have eggs with camouflage paint of shell, can nest open. The survival strategy of a species consists in the dispersion of eggs (for nest parasites) or nests and in the diversity nest constructions for the protection of clutches and nestlings. [Russian].
Key words: egg, natural selection, survival strategy.