What is the string instrument that has birds?

Answer 1

The string instrument you’re referring to is likely the "theremin." While it doesn't have birds per se, it is often associated with bird-like sounds due to its unique ability to produce ethereal tones through the manipulation of electromagnetic fields. Alternatively, the "erhu," a two-stringed Chinese instrument, has been used in music that mimics bird calls. If you meant a specific instrument with a literal bird design or motif, please clarify!