Mew Gull Larus canus canus; heinei; kamtschatschensis; brachyrhynchus
(last update: March 12, 2012)
Table 4: number of birds with white tips on P7-P9.
From: Is it possible to age subadult Mew Gulls Larus canus?
by: Kenneth Bengtsson & Lennarth Blomquist, publication in: Anser 2-42(2003): p 73-92.
| Age: | N: | P7 | P8 | P9 |
| 2 | 91 | 15 | 3 | 1 |
| 3 | 18 | 18 | 16 | 8 |
| 4 | 13 | 13 | 12 | 7 |
| 5 | 11 | 11 | 11 | 6 |
| 6 | 10 | 10 | 10 | 9 |
7 |
6 | 6 | 6 | 6 |
| 8-12 | 15 | 15 | 15 | 10 |
| 3-12 | 73 | 100% | 96% | 63% |
| adult reference group | 100 | 100% | 100% | 74% |