Researchers Identify Two New Extremely Loud Bird Species
A study analyzing 123 species finds two birds with calls exceeding 120 decibels.
Updated on Oct. 29, 2026 in Bird Watching

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A new study published in the journal Evolution identifies two additional bird species with vocalizations exceeding 120 decibels. These findings expand the understanding of extreme avian sound production beyond the previously known white bellbird.
Why it matters
Understanding the mechanics behind extreme bird calls helps scientists investigate the evolutionary advantages of high-amplitude vocalizations. The research suggests that physical traits like body size and beak width play a larger role in sound volume than previously assumed.
The study analyzed 123 species, noting that the white bellbird holds the record at 125 decibels. Two newly identified species now join this category by exceeding the 120-decibel threshold.
The players
Journal Evolution
This is a peer-reviewed scientific publication that covers research on evolutionary biology and related ecological studies.
The details
Researchers conducted field recordings in Brazil and western Massachusetts to measure vocalizations in natural environments rather than lab settings. The study concluded that larger body mass and wider beaks are stronger correlates for loudness than habitat or mating strategies.
Timeline
In 2019, the white bellbird was established as the loudest record holder at 125 decibels.
The current study was published in the journal Evolution in October 2026.
Culture Shift
The findings challenge long-held assumptions regarding avian vocalization, marking a departure from hypotheses that linked loudness to habitat density or polygamy. This research shifts the focus toward anatomical traits, such as beak structure, in the evolution of animal communication.
Bird enthusiasts may need to calibrate their recording equipment to capture these high-decibel signals during field observations. Understanding these physical indicators can help hobbyists identify potential high-volume species in diverse habitats.
The takeaway
Extreme bird calls are more often tied to physical anatomy than to social behaviors like mating systems. Bird watchers should look for birds with larger beaks and body sizes if they are searching for the loudest singers in the wild.
Further reading
Learn more about avian vocalization patterns in the Bird Watching section.
Source note: This article includes information reported by Popular Mechanics.
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