nˈoʊ ˈɛvɪdəns ɛɡzˈɪsts ʌv nˈætʃɚɹəl hˈaɪbɹɪdz, ɔːlðˈoʊ ðə hˈæbɪtˌæts ˈɑːkjʊpˌaɪd baɪ ðə tˈuː spˈiːsiːz ɑːɹ vˈɛɹi sˈɪmɪlɚ.
No evidence exists of natural hybrids, although the habitats occupied by the two species are very similar.