Translation

uguisu means "Japanese Bush Warbler" in English.

uguisu written with kanji is .
This word contains non-jouyou kanji 常用漢字.
uguisu written with katakana is ウグイス.
uguisu written with hiragana is うぐいす.
Romaji u gu i su
Hiragana
Katakana
Kanji
School Level

uguisu may also be written as .

Further Reading

Wikipedia: (Japanese_bush_warbler)