What are the onomatopoeic words that describe bird songs?

Pinyin [chā chā]

Explain the voice that describes the whisper; Speak in a low voice

2. Twitter

spell

Explain onomatopoeia; Tiny calls such as insects and birds; A shrill cry.

3, goo goo

Pinyin [ancient] [ancient]

Explain to a whisper; Encourage; The sound of pigeons, etc. The sound made when you are hungry.

Step 4 chirp

Pinyin [zh not u Ji]

Explain onomatopoeia. Birds sing. jis。

Synonyms: chirp, chirp, chirp, chirp.

5. hey, hey

Explain onomatopoeia. The crisp sound of birds.

For example, warblers croak.