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Related Experiment Video

Updated: Aug 20, 2025

Evaluation of Auditory Brainstem Response in Chicken Hatchlings

Evaluation of Auditory Brainstem Response in Chicken Hatchlings

Published on: April 1, 2022

Azimuthal sound localization in the chicken.

Gianmarco Maldarelli¹, Uwe Firzlaff¹, Harald Luksch¹

¹Chair of Zoology, School of Life Sciences, Technical University of Munich, Freising-Weihenstephan, Germany.

|November 22, 2022

Summary

This summary is machine-generated.

Chickens demonstrate high sound localization acuity, comparable to other birds. Localization accuracy for broadband noise improved with longer sound duration, indicating effective auditory processing in non-auditory specialists.

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Last Updated: Aug 20, 2025

Evaluation of Auditory Brainstem Response in Chicken Hatchlings

Evaluation of Auditory Brainstem Response in Chicken Hatchlings

Published on: April 1, 2022

In Ovo Electroporation in the Chicken Auditory Brainstem

In Ovo Electroporation in the Chicken Auditory Brainstem

Published on: June 9, 2017

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Slicing the Embryonic Chicken Auditory Brainstem to Evaluate Tonotopic Gradients and Microcircuits

Published on: July 12, 2022

Area of Science:

Auditory Neuroscience
Animal Behavior
Avian Biology

Background:

Sound localization is vital for animal survival and reproduction.
Chickens (Gallus gallus) are non-auditory specialists with a studied auditory system.

Purpose of the Study:

To measure the minimum audible angle (MAA) in chickens for sound localization acuity.
To compare chicken sound localization abilities with other avian species.

Main Methods:

A behavioral experiment using 3 roosters in a 2-alternative forced choice sound localization task.
Measurement of MAA using broadband noise of varying durations (0.1 s and 1 s).

Main Results:

Chickens exhibited high sound localization acuity, comparable to hens in previous studies.
Localization was more accurate for longer sound durations (1 s; MAA = 16°) than brief durations (0.1 s; MAA = 26°).
Interaural time and level differences at MAAs suggest informative azimuthal localization cues.

Conclusions:

Chickens possess significant sound localization capabilities, outperforming many generalist bird species.
Sound duration is a critical factor influencing localization acuity in chickens.
The auditory system of chickens provides effective cues for sound localization, despite not being specialized for hearing.