The call is described as a short ''heewee heewee'', or quick, harsh ''heepheepheep''; the calls can vary both in tone and structure<ref>https://www.xeno-canto.org/species/Baeolophus-bicolor</ref>. | The call is described as a short ''heewee heewee'', or quick, harsh ''heepheepheep''; the calls can vary both in tone and structure<ref>https://www.xeno-canto.org/species/Baeolophus-bicolor</ref>. |