Audio Based Bird Species Identification using CNN

Declining bird numbers during the last halfcentury have highlighted the urgent need for precise and noninvasive monitoring and conservation techniques. To overcome this difficulty, this study presents an automated approach for classifying bird species that makes use of machine learning and audio processing methods. The method efficiently separates species based on distinct audio patterns while filtering background noise by analyzing bird cries using Convolutional Neural Networks (CNNs) and extracting important information using Mel-Frequency Cepstral Coefficients (MFCCs). The technique improves its appropriateness for field applications by providing a less intrusive substitute for conventional image-based methods. Three bird species American Redstart, Common Tern, and Red-winged Blackbird are correctly classified using the system’s capacity to analyze unique vocalizations. To improve robustness and dependability, strategies including model regularization and data augmentation were used. Although issues like background noise, bird call variability, and audio representation continue to be major barriers, the strategy highlights how sophisticated audio processing can help boost biodiversity research and conservation efforts around the world.

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Publication Details

Published
2025-04-24
DOI
https://doi.org/10.1109/amathe65477.2025.11081175
Primary Topic
Animal Vocal Communication and Behavior
Type
article
Field-Weighted Citation Impact
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article

Audio Based Bird Species Identification using CNN

Dayananda, Pallavi Shetty
Animal Vocal Communication and Behavior
article

Audio Based Bird Species Identification using CNN

Dayananda, Pallavi Shetty
article en

Abstract

Declining bird numbers during the last halfcentury have highlighted the urgent need for precise and noninvasive monitoring and conservation techniques. To overcome this difficulty, this study presents an automated approach for classifying bird species that makes use of machine learning and audio processing methods. The method efficiently separates species based on distinct audio patterns while filtering background noise by analyzing bird cries using Convolutional Neural Networks (CNNs) and extracting important information using Mel-Frequency Cepstral Coefficients (MFCCs). The technique improves its appropriateness for field applications by providing a less intrusive substitute for conventional image-based methods. Three bird species American Redstart, Common Tern, and Red-winged Blackbird are correctly classified using the system’s capacity to analyze unique vocalizations. To improve robustness and dependability, strategies including model regularization and data augmentation were used. Although issues like background noise, bird call variability, and audio representation continue to be major barriers, the strategy highlights how sophisticated audio processing can help boost biodiversity research and conservation efforts around the world.

Nitte University (IN)
Openalex Percentile: Top 83%
Animal Vocal Communication and Behavior
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