| Number of letters | Bird | % Correct |
|---|---|---|
| 4 | Wren | 97%
|
| 5 | Robin | 82%
|
| 4 | Rook | 77%
|
| 4 | Coot | 67%
|
| 3 | Jay | 67%
|
| 5 | Raven | 67%
|
| 4 | Smew | 49%
|
| 5 | Swift | 49%
|
| 5 | Hobby | 46%
|
| 4 | Teal | 41%
|
| 4 | Knot | 36%
|
| 4 | Ruff | 36%
|
| 5 | Quail | 28%
|
| 4 | Shag | 28%
|
| 5 | Twite | 28%
|
| 5 | Eider | 23%
|
| 5 | Snipe | 23%
|
| 5 | Serin | 18%
|
| 5 | Scaup | 13%
|