Figure 04: 7147147 (0/0) one-year old pale bird (1CY), probable canus, 24 December 1996. Note pale greater coverts and grey scapular saddle.
Figure 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.