I live in the WSU-Vancouver area of where Battle Ground-Ridgefield-
Vancouver come together, a few house from a postage stamp size
hillside park that backs into a grrenway. This open fir-maple park
warms early and is a good indication of new migrant arrival
overnight. This morning was exceptional during the hour that I spent
in the park and greenway edge. The first 15 minutes was constant
action with warblers moving toward the greenway, followed by 15
minutes of only local nesters, then the wave of warblers returned to
the parkand cycled through. The grosbeaks showed up as I was
leaving. Here's the complete list, including my first sightings at
this location this spring:

Vaux's Swift 6
Red-breasted Sapsucker 1
Warbling Vireo 4 new
Steller's Jay 3
American Crow 15
Violet-green Swallow 40
Cliff Swallow 1 new
Red-breasted Nuthatch 2
Bewick's Wren 2
Swainson's Thrush 1 new
Hermit Thrush 1 new
American Robin 20
European Starling 20+
Orange-crowned Warbler 80
Nashville Warbler 6
Yellow Warbler 2 new
Yellow-rumped Warbler 200 (~80% Audubons)
Black-throated Gray Warbler 4
Townsend's Warbler 4
Wilson's Warbler 3 new
Spotted Towhee 3
Song Sparrow 8
Black-headed Grosbeak 1 new
Brown-headed Cowbird 4 new
Pine Siskin 8
American Goldfinch 3
Evening Grosbeak 6 new