At studying of song organizations of chaffinch (Fringilla coelebs L.) are found out unique parities of song types in dif......

Song of birds is subtle and flexible species specific feature, like as the morphology signs. Species specific song of ch......

When studying song organizations of chaffinch (Fringilla coelebs L.), we find the unique typological parities (ratio) of......

There are such characteristics of a matter of the nature, as variability and stability (tradition, norm). Probably, thes......