The last of a three blog posts covering the three distinct plumages of Mediterranean Gull in winter. All photos from Forty Foot, Dublin on 7 February 2019. Adult, 1st winter and 2nd winter birds come in three distinct plumages. Here are the 2nd winters.
Mediterranean Gulls in the second winter season of life looks similar to the adults except for one big difference - sharp black markings in the primary tips. The bill is also duller and less extensively red or yellowish.
Note the slightly smaller adult Black-headed Gull in the background with a thinner bill and much smaller white tips to folded primaries.