| Similarity | Rank | |
|---|---|---|
| razorbill | 0.896 | 60721 |
| kittiwake | 0.884 | 33943 |
| cormorant | 0.881 | 26410 |
| red-throated | 0.878 | 54047 |
| red-breasted | 0.877 | 51593 |
| chough | 0.860 | 54484 |
| grebe | 0.849 | 34498 |
| black-throated | 0.848 | 90934 |
| black-backed | 0.847 | 50125 |
| pink-footed | 0.847 | 74769 |
| puffin | 0.847 | 20600 |
| whooper | 0.842 | 46385 |
| auk | 0.840 | 31418 |
| ptarmigan | 0.839 | 48535 |
| goldeneye | 0.839 | 54000 |
| phalarope | 0.838 | 48476 |
| tern | 0.838 | 15678 |
| guillemot | 0.837 | 27350 |
| petrel | 0.834 | 26348 |
| merganser | 0.833 | 51592 |
| eider | 0.831 | 27984 |
| shoveler | 0.830 | 69901 |
| goosander | 0.829 | 69934 |
| nightjar | 0.826 | 49251 |
| bittern | 0.826 | 39895 |