I made a quick trip to Amberglen Office Park in Hillsboro to check the lawn for gulls. Along with a small flock of Ring-billed Gulls were four Mew Gulls. Mews are one of my favorite gulls. They are easy to pick out of a mixed flock, they seldom if ever hybridize, and they possess a cuteness not found in most Larids.
Mew Gulls are found in Oregon from October to March. They are most common in estuaries along the coast, but you can find them in decent numbers in the Willamette Valley.
As gulls go, Mews are pretty petite with their short slender bills and round pigeon-like heads. Eye color variable, but tends toward the dark side. Like Ring-bills, Mews show very long wing projection beyond the tail.
This individual is heavily marked on the head and breast compared to the bird above.
Amberglen is a good spot for waterfowl and attracts a few songbirds. Several sparrow species, including this Song Sparrow, were foraging around the main pond.
Here is my obligatory photo of a Nutria. Cuteness transcends their invasive species status.