O. A. Astakhova

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The song repertoire of many sparrow species (Passeriformes) has not one but several song types. In the investigated chaffinch population (Fringilla coelebs L.), we revealed 22 types of songs, of which four turned out to be rare (they were found in 1—2 points), and five song types were combined (they consisted of phrases of different song types). The average(More)
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