05 May 2015 — PNW Migration Update

A turn in the weather put a bit of a damper on last nights trip north.  There were birds in the air, just not many of them — comparatively.  Still no word on our last two holdouts.  But, the Red-eyed Vireos have shown up at their preferred haunts on the Sandy River Delta.

Big flights last night along the Central, Mississippi, and Atlantic Flyways.  Check out Paul’s archived National Radar Composite, and Cameron’s wind map for insight on what made that happen.

Since the flight last night was light to moderate and through some heavy cloud cover, today’s loop is the Hydrometer Classification so the Biological returns stand out.