A birbynė is a Lithuanian aerophone that can be either single or double-reeded and may or may not have a mouthpiece.

Birbynė can be made of a variety of materials: wood, bark, horn, straw, goose feather, etc.

[2] The earliest and simplest examples were used by children as playtoys and by shepherds as a tool to control the herd.

[1] Modern birbynės are made of wood with bells of horn and usually have ten tone holes and an octave key to access the upper registers.

They are divided by pitch range into three categories: soprano, tenor, and contrabass.