Mew Gull Larus canus canus; heinei; kamtschatschensis; brachyrhynchus

(last update: March 12, 2012)

Coordinators:
Kjeld Tommy Pedersen (Denmark)
Chris Gibbins (Scotland)
Frank Majoor (Netherlands)
Mars Muusse (Netherlands)

Table 1: number of mirrors on the outer primaries.

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: 0 1 2 3
1 374 361 13 0 0
2 151 0 22 129 0
3 24 - - 23 1
4 15 - - 12 3
5 12 - - 7 5
6 10 - - 10 -

7

7 - - 3 4
8-12 19 - - 16 3
3-12 87 - - 82% 18%
adult reference group 100 - - 80% 20%