Fig 1.
The workflow of proposed method.
Table 1.
Basic statistics of dataset.
Fig 2.
Distribution of birds’ species data.
Fig 3.
Mel-spectogram images of some bird species audio.
Table 2.
Table of parameters and values.
Fig 4.
Accuracy and loss of fine-tuned EfficientNet-B7 transfer learning model.
Fig 5.
Accuracy and loss of fine-tuned EfficientNet-B7 embedded with LSTM.
Fig 6.
Accuracy and loss of fine-tuned EfficientNet-B7 embedded with GRU.
Table 3.
Comparative results of different models on test data.