ðə baɪbˈoːɹkɚ ɹˈɪvɚɹ ɪz ˈɔːlsoʊ mˈɛnʃənd, æz wˈɛl æz ðɪ ˈeɪntʃənt tɹˈækt ʌv bˈoʊbɚkə baɪbˈoːɹkə, wˌɪtʃ mˈiːnz ɐ plˈeɪs wˌɛɹ bˈiːvɚz wɜː hˈʌntᵻd ɪn ˈeɪntʃənt ɹˈuːz.
The Biborka River is also mentioned, as well as the ancient tract of Boberka (Biborka), which means a place where beavers were hunted in ancient Rus.