| Similarity | Rank | |
|---|---|---|
| sightings | 0.888 | 20116 |
| sighted | 0.743 | 23660 |
| Sightings | 0.724 | 70806 |
| spotting | 0.712 | 18893 |
| spotted | 0.699 | 7258 |
| flyby | 0.683 | 80846 |
| UFO | 0.672 | 15992 |
| osprey | 0.664 | 77584 |
| spotters | 0.652 | 81801 |
| peregrine | 0.647 | 85865 |
| UFOs | 0.636 | 31458 |
| buzzards | 0.632 | 95718 |
| flying | 0.628 | 3166 |
| birding | 0.628 | 29491 |
| birders | 0.626 | 50364 |
| birder | 0.626 | 86243 |
| Spotted | 0.624 | 40197 |
| raptor | 0.613 | 61070 |
| humpback | 0.613 | 54432 |
| white-tailed | 0.612 | 82756 |
| photograph | 0.611 | 5756 |
| binoculars | 0.611 | 22666 |
| woodpecker | 0.608 | 66142 |
| photographed | 0.607 | 12784 |
| raptors | 0.607 | 51082 |