Personality predicts song complexity in superb fairy-wrens

In birds, singing behaviours play a critical role in mating and territory defence. Although birdsong can signal individual quality and personality, very few studies have explored the relationship between individual personality and song characteristics, and none has investigated this in females. Here...

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Main Authors: Diane Colombelli-Négrel, Andrew C. Katsis, Lauren K. Common, Sonia Kleindorfer
Format: Article
Language:English
Published: The Royal Society 2025-04-01
Series:Royal Society Open Science
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Online Access:https://royalsocietypublishing.org/doi/10.1098/rsos.241497
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author Diane Colombelli-Négrel
Andrew C. Katsis
Lauren K. Common
Sonia Kleindorfer
author_facet Diane Colombelli-Négrel
Andrew C. Katsis
Lauren K. Common
Sonia Kleindorfer
author_sort Diane Colombelli-Négrel
collection DOAJ
description In birds, singing behaviours play a critical role in mating and territory defence. Although birdsong can signal individual quality and personality, very few studies have explored the relationship between individual personality and song characteristics, and none has investigated this in females. Here, we examined the relationships between song complexity and two ecologically relevant personality traits (exploration and aggressiveness) in wild superb fairy-wrens (Malurus cyaneus), a species in which both sexes learn to produce complex songs. First, we assessed personality in males and females (including juveniles) by quantifying their exploration behaviour (novel environment test) and aggressiveness (mirror stimulation test) during short-term captivity. After birds were released, we recorded their songs over several months to assess individual variation in song complexity (i.e. element types per song and syllables per song) in relation to personality. Regardless of their sex or life stage, individuals that were more exploratory had more element types per song. Additionally, more aggressive individuals produced songs with fewer syllables, and more aggressive fledglings, but not adults, had more element types per song. Our study supports the idea that both male and female birds can advertise their personality when singing, which may be important for mate choice.
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spelling doaj-art-bbebec7660c14e4c8fc3c59183914d5a2025-08-20T03:10:21ZengThe Royal SocietyRoyal Society Open Science2054-57032025-04-0112410.1098/rsos.241497Personality predicts song complexity in superb fairy-wrensDiane Colombelli-Négrel0Andrew C. Katsis1Lauren K. Common2Sonia Kleindorfer3College of Science and Engineering, Flinders University, Adelaide, South Australia, AustraliaCollege of Science and Engineering, Flinders University, Adelaide, South Australia, AustraliaCollege of Science and Engineering, Flinders University, Adelaide, South Australia, AustraliaCollege of Science and Engineering, Flinders University, Adelaide, South Australia, AustraliaIn birds, singing behaviours play a critical role in mating and territory defence. Although birdsong can signal individual quality and personality, very few studies have explored the relationship between individual personality and song characteristics, and none has investigated this in females. Here, we examined the relationships between song complexity and two ecologically relevant personality traits (exploration and aggressiveness) in wild superb fairy-wrens (Malurus cyaneus), a species in which both sexes learn to produce complex songs. First, we assessed personality in males and females (including juveniles) by quantifying their exploration behaviour (novel environment test) and aggressiveness (mirror stimulation test) during short-term captivity. After birds were released, we recorded their songs over several months to assess individual variation in song complexity (i.e. element types per song and syllables per song) in relation to personality. Regardless of their sex or life stage, individuals that were more exploratory had more element types per song. Additionally, more aggressive individuals produced songs with fewer syllables, and more aggressive fledglings, but not adults, had more element types per song. Our study supports the idea that both male and female birds can advertise their personality when singing, which may be important for mate choice.https://royalsocietypublishing.org/doi/10.1098/rsos.241497aggressivenessexplorationlearnt signalsMaluridaesexual signalling
spellingShingle Diane Colombelli-Négrel
Andrew C. Katsis
Lauren K. Common
Sonia Kleindorfer
Personality predicts song complexity in superb fairy-wrens
Royal Society Open Science
aggressiveness
exploration
learnt signals
Maluridae
sexual signalling
title Personality predicts song complexity in superb fairy-wrens
title_full Personality predicts song complexity in superb fairy-wrens
title_fullStr Personality predicts song complexity in superb fairy-wrens
title_full_unstemmed Personality predicts song complexity in superb fairy-wrens
title_short Personality predicts song complexity in superb fairy-wrens
title_sort personality predicts song complexity in superb fairy wrens
topic aggressiveness
exploration
learnt signals
Maluridae
sexual signalling
url https://royalsocietypublishing.org/doi/10.1098/rsos.241497
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AT andrewckatsis personalitypredictssongcomplexityinsuperbfairywrens
AT laurenkcommon personalitypredictssongcomplexityinsuperbfairywrens
AT soniakleindorfer personalitypredictssongcomplexityinsuperbfairywrens