27 April 2015 — PNW Migration Update

More Western Kingbirds, first Dusky Flycatcher and Bullock’s Oriole.  I’m sure i’ve missed something over the weekend.  I’m pretty sure a Western Wood Pewee has shown up in southern Oregon.  Anyway, weekends are hectic and with the sun rising earlier it’s tough to do much but get out in the field and tend to chores.

Last night was a bit unusual as a weak little rain cell moved through the area at the time of nocturnal bloom (1 hr after sunset).  So there is no big flight taking off.  Maybe a couple of opportunistic flocks that found a hole in the weather.  But then, after the cell moved through a significant flight takes place at around 1:00 AM (18:00 UTC).  I don’t think i’ve seen that before.  If i have i don’t remember it.  Have a look:

22 Apr 2015 — Migration Update

As predicted yesterday the north winds kept migrants grounded last night.  It looks like these conditions may hang around for a while too.  I have a capture of the situation in today’s gallery.  But i encourage anyone looking to get a handle on atmospheric conditions to visit Cameron’s website here.

A few more reports for the Portland Area: Lazuli Bunting, Western Kingbird, Warbling Vireo, Nashville Warbler.


21 Apr 2015 — PNW Migration Update

Wow — it’s getting hard to keep up.  Western Kingbird, Willow Flycatcher, Lazuli Bunting, Solitary Sandpiper, Chipping Sparrow, Yellow-headed Blackbird, and probably some i am forgetting, are now in the Portland area.  Lots of these birds are setting new early arrival dates and it makes me wonder why they left their wintering grounds so early?

Anyway, another great night for nocturnal flight. Heavy migration was underway along the whole Pacific Flyway.  We have an advancing high pressure system and the leading edge north winds may put a damper on migration over the next couple of days.  It depends on how strong the winds are once they make landfall.  So i put a wind map in today’s gallery to visualize whats going on.