Author Correction to: BMC Biol 19:121 (2021)

https://doi.org/10.1186/s12915-021-01026-z

Following publication of the original article [1], the authors noticed that an incorrect file for Additional file 4 was captured. The corrected version of Additional file 4 is attached to this Correction and Additional file 4 has been updated in the original article accordingly.

Additional file 4. Acoustic camera video of a biphonation call and a squeak (left: f, 55 years, right: f, 66 years).