On 18 September, Erika and I took a swing around the Olympia harbor. I photographed a couple of gulls in close attendance with young birds. The adult in the first picture slipped off his perch on a metal roof. The young bird followed in hot pursuit. Both adults appeared to ignore their young, perhaps attempting to wean them from parental feeding.
These birds are “Olympic” Gulls, hybrids between Western and Glaucous-winged gulls. The ranges of these two gulls overlap here, the result being a hybrid swarm in the region, with almost no genetically pure individuals. Given this situation, I think that they should be considered a single species.