Figure 1:

Figure S1:

Figure 2:

Figure 3:

Figure S2:

Performance metrics of the CNN model computed on the evaluation set for high animal densities (above 70)_
| Area | ||||
|---|---|---|---|---|
| Metric | Small | Medium | Large | All |
| Average precision @ IoU = 0.50 | No animals | 0.784 | 0.810 | 0.787 |
| Average recall @ IoU = 0.50 | No animals | 0.851 | 0.856 | 0.842 |
Performance metrics of the CNN model computed on the evaluation set for low and moderate animal densities (below 70)_
| Area | ||||
|---|---|---|---|---|
| Metric | Small | Medium | Large | All |
| Average precision @ IoU = 0.50 | No animals | 0.870 | 0.883 | 0.872 |
| Average recall @ IoU = 0.50 | No animals | 0.930 | 0.918 | 0.917 |