Shortening name + official localization, unsure if i'm missing others
Might want to keep it "Ratatos Browntail" as it's the full name and goes in line with her sister Sciurus Browntail. sidenote: Just did some research, CN appears to have "Ratatos" as the official name too, (removing the last syllable of "Ratatoskr), so definitely a yes to the rename (alias).