Like other national wildlife refuges in the Willamette Valley, Tualatin National Wildlife Refuge has limited access in autumn and winter. But the trail that is open can provide some good birding.
The highlight of this trip was a fresh sapsucker well that was attracting both Anna’s Hummingbirds and Ruby-crowned Kinglet. Sapsucker wells are an important source of nectar and insects for birds in the colder months.
Bewick’s Wrens spend much of their time buried in the depths of brush piles, but this individual popped up and posed for a few photos.
It is always worth the time to check out brushy hedgerows this time of year.
I don’t normally think of Dark-eyed Juncos as having a camouflage pattern, but this individual was doing a great job of blending in with his environment.
Happy Autumn
Typically seen wading, Greater Yellowlegs will occasionally swim in groups to catch small fish.
This juvenile Western Sandpiper, showing the characteristic rusty suspenders, was taking advantage of low water levels at Smith and Bybee Wetlands.
The main lake at Fernhill Wetlands has receded enough to create some nice mudflats, here being enjoyed by a Pectoral Sandpiper.
juvenile Long-billed Dowitcher, showing the characteristic solid dark tertials
juvenile Short-billed Dowitcher, showing the characteristic tiger-striped tertials
Spotted Sandpipers nest in the Portland area. Juveniles, like this one, can be recognized by the barring on the wing coverts.
Semipalmated Plovers are surely one of the cutest shorebirds. The scaly pattern on the wings tells us that this is a juvenile.
Trestle Bay, just off Parking Lot D at Fort Stevens State Park, can be one of the more productive shorebird spots on the north coast. Timing is critical, as the bay fills completely with the high tide.
When the tide is out, the bay provides extensive mudflats. With this much exposed mud, the birds can be quite distant, so timing your visit when the tide is coming in can produce some nice viewing.
On this visit we observed what we thought was a California Sea Lion carcass way out on the flat.
Later we noticed the the sea lion had rolled over and extended a flipper. Apparently he was just hanging out on the mudflat catching some sun.
I normally see these animals basking on rocks, but the mud was apparently working for this guy.
Southbound shorebird migration tends to come in waves, and we were between waves on this visit. Our consolation birds were this flock of Common Mergansers with a California Gull.
I don’t spend a lot of effort looking for butterflies, but I do appreciate it when one poses for me. This is a Lorquin’s Admiral.
This Northwestern Garter was hiding under a piece of bark near a stump. The cloudy eyes indicate that the snake is about to shed. Snakes in this condition cannot see well, so I generally avoid handling them.
I am having trouble distinguishing Brush Rabbits from the introduced Eastern Cottontail. I have recently learned that the two species will hybridize, making identification even harder. The rusty nape on this individual makes me think it is an Eastern Cottontail.
I first saw this Long-tailed Weasel chasing a Brush Rabbit down the trail and into the vegetation. After a brief tussle, the rabbit was subdued.
The weasel then dragged the rabbit across the trail and into the brush, despite the fact that the rabbit was significantly heavier than the weasel. These are impressive little predators.
Spring migration has come and gone, and many birders agree that it was a dud. Numbers and diversity seemed quite low in the Portland area this spring. So now we concentrate on the summer residents, like this Black-headed Grosbeak.
Most Golden-crowned Sparrows are gone by late May, so this bird found on June 2 was noteworthy.
At Tualatin River NWR, this Lazuli Bunting was singing in the same patch of Nootka Rose that has hosted them in previous years. 
Tualatin River NWR is hosting at least two pairs of Blue-winged Teal this summer.
Purple Martins at Fernhill Wetlands
Bewick’s Wren are usually working heavy cover, so it was a treat to find this one dust bathing in the middle of a gravel road.
Hooded Merganser preening at Fernhill Wetlands
Spotted Sandpiper
This Gadwall is already starting to molt into his dull summer alternate plumage. I often refer to late summer as Ugly Duck Season. It seems a little early for ducks to be losing their sharp breeding colors.
John Rakestraw 