Where does “тукан” come from?

тукан (Russian) comes from French toucan, from Old Tupi tukana, from Proto-Tupi-Guarani *tũkãn.

Ancestry of “тукан”, step by step

Step	Language	Word	Meaning
1	French	toucan	toucan
2	Old Tupi	tukana	toucan
3	Proto-Tupi-Guarani	*tũkãn	—

тукан — Etymology, Origin & Word History | Etymology Explorer