After an enjoyable Sunday morning birding at Marymoor (thanks Ellen and
Andrew from Yakima for sharing your identification/"pishing" skills) I
returned to McCormick to see if the Eastern Kingbird was still around. Sure
enough, same location and traversing the same flight path over the pond.
McCormick is a surprisingly rich resource for being in a developed area.
Despite it being around noon and hot, and I only covered for an hour the
approximately one-third mile from the park entrance to the first bridge
southbound on the Snoqualmie Valley Trail, here is what I saw (in addition
to the Eastern Kingbird):

Green heron
Great blue heron
Kingfisher (3)
Wooduck (2 females with a total of 6 ducklings)
Mallard (female with 4 ducklings, 2 males )
Rufous hummer (1 male, 1 female)
Anna's hummer (1 male)
Hummer (1 unidentified)
Black-headed grosbeak (2 male, 1 female)
Robin (3)
Swainson's Thrush
Bullock's oriole (pair with nest - female still sitting, male guarding)
Brown Creeper
Cedar waxwing (numerous)
Towhee (2)
Common Yellowthroat
Song sparrow
Black-capped chickadee
Bushtit (numerous in flock)
Red-breasted sapsucker
Downy woodpecker
Flicker (female) (feeding young in nest snag)
Starlings (numerous) (including feeding young in same nest snag as Flicker
but at top)
Tree swallows (numerous)
Red-winged blackbirds (numerous)
Goldfinch (4 males, 2 females)
Wood peewee (2 seen, others heard)
Willow flycatcher (1 seen, others heard)
American crow (3)
Red-tailed hawk

For birders with mobility or endurance issues, McCormick is an easy and
rewarding location (although the flat trail is not paved).

Tom Mansfield, Seattle
(tmiseattle at msn.com)