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.

15 Apr 2015 — PNW Migration Update

We have an advancing ridge of high pressure and a retreating trough of low — always a dicey proposition for spring migrants headed north.  There was a bit of movement last night, but it was on the moderate side at best.

Best chatter on the Pacific Flyway listserves comes from the Central Valley where Lazuli Bunting was noted.  Also Yellow-headed Blackbird and Western Flycatcher have made it to the Portland area.

There was some excellent trans-Mexican Gulf migration conditions last night and the flight into Key West was spectacular.  But for some reason i can’t download the file.  Maybe Badbirdz will archive a loop today.