Mew Gull Larus canus canus; heinei; kamtschatschensis; brachyrhynchus
(last update: March 12, 2012)
Table 2: number of primaries with sub-terminal black markings.
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: | 5 | 6 | 7 | 8 | 9 | 10 |
| 2 | 151 | - | 19 | 98 | 29 | 4 | 1 |
| 3 | 24 | 3 | 16 | 5 | - | - | - |
| 4 | 15 | 1 | 11 | 3 | - | - | - |
| 5 | 12 | 1 | 9 | 1 | 1 | - | - |
| 6 | 10 | - | 8 | 2 | - | - | - |
7 |
7 | 3 | 2 | 2 | - | - | - |
| 8-12 | 19 | 2 | 16 | 1 | - | - | - |
| 3-12 | 87 | 11,5% | 71% | 16% | 1% | - | - |
| adult reference group | 100 | 3% | 90% | 7% | - | - | - |