Answer:
Only turkeys in English speaking countries are said to say "gobble gobble" (see list.) While this looks like turkeys speak different languages in different countries it really means that turkeys have their "turkey noise" written down in a different manner by people speaking in different languages.
In other countries their noise is interpreted in as:
Afrikaans: Kalkoen kloek.
Albanian: krrull krrull
Danish: Kalkunen klukker.
English: gobble gobble
Esperanto: glu-glu-glu
French: glouglou
Hebrew: Tarnegoley hodu mekarkerim.
Montenegrin: glu-glu
Portuguese (Portugal): glugluglugluglu
Turkish: glu glu
Ukrainian: glyu-glyu