20 Apr 2015 — PNW Migration Update

Over the weekend there have been a few reports of MacGillivray’s, Wilson’s, Nashville and Hermit Warbler, somewhere in Oregon a Western Kingbird, the first report of a Cassin’s Vireo, and a few “Western” Flycatchers.  Shorebirds are beginning to build in numbers as they move through.

Out on Sauvie Island (where i spent my weekend) Sandhill Crane numbers are way down as are most waterfowl numbers.  I haven’t seen a Canvasback or Ruddy Duck for a few weeks now and Scaup and Bufflehead are hard to come by.  Double-crested Cormorants are gone, and a few A. White Pelicans are moving through — probably on their way to the recently established breeding colony on the lower Columbia.

Last night’s radar (KRTX) was lit up solid green.  The stable, calm weather as a new ridge establishes is providing a nice set of flight conditions and the birds are taking advantage. I threw in a loop of the Medford (KMAX) radar because it’s rare to see such density from this station.

Update: Warbling Vireo, Yellow Warbler, and Western Tanager have made it to the Willamette Valley.