From the heavy bill, and overall impression of the bulkiness of this bird, my first impression was Herring Gull. After trying to age this bird, I am confused by the field marks of this bird.

1. It has the dark eyes of a 1 year old Herring Gull
2. The bill, being mostly pink with a black band near the end, is characteristic of either a 1st summer or 2nd winter Herring Gull.
3. The head is pale in the front, with light detailing throughout the back end of the head. This is characteristic of 3 year old Herring Gulls, and more pale in adult non-breeding Herring Gulls.
4. The pale mantle with dirty outer edges of the folded wings are characteristics of the 3rd winter Herring Gull.
5. Primary tips look all dark like a non-adult Herring Gull