According to an ERTNews overview republished by ČT24 on 1 November, researchers led by McGill specialists compared vocalisations from 367 bird species with human speech and songs from 52 languages. The outlet describes shared acoustic features including pitch changes, rhythmic organisation and sound lengthening at phrase endings.
The authors suggest that some similarities may relate to shared biological mechanisms of sound production and breathing, the overview says. This remains a research interpretation. The article explicitly distinguishes acoustic similarities from a claim that birds communicate in human language.
For readers interested in nature, language and music, this illustrates comparative communication research. The original ERTNews overview is dated 30 October and refers to the journal Science. The full methods and limits of the conclusions can be assessed only from the scientific publication itself.
