Mew Gull Larus canus canus; heinei; kamtschatschensis; brachyrhynchus
(last update: March 12, 2012)
Table 3: number of birds with black markings in the tail feathers.
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: | black | white |
| 1 | 374 | 374 | 0 |
| 2 | 138 | 24 | 114 |
| 3-12 | 55 | 0 | 55 |
| 3-12 | - | - | 100% |
| adult reference group | - | - | 100% |