Translation

naichingēru means "Nightingale" in English.
It's a katakanization, a loan-word.

naichingēru is normally written with katakana, as ナイチンゲール.
naichingēru written with hiragana is ないちんげーる.
naichingēru does not have kanji.
Romaji na i chi n gee ru
Katakana
Hiragana

Orthography Notes

Synonyms

Scientific name: Luscinia megarhynchos.

Further Reading