26 October 2017 – PNW Migration Update

I’m still not seeing the duck numbers i expect but the Cackling Geese have DEFINITELY arrived.  I saw 2 to 3 thousand of them yesterday in the rural fields of Clackamas County.

But the number of migrants wanes:

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23 October 2017 – PNW Migration Update

First clear night since the last update and it was, as expected, a moderate event.  We still see good movement on the western flanks of the Cascades and a nice pulse mid-valley probably associated with duck and goose movement between the NWR’s.

I’m not seeing much except coastal movements on the listserves. I got out into the field a little this weekend; found a large flock of Pine Siskins, and had about 30 gulls around the Willamette Falls area – one Western, one Herring, and 28 Olympic, no Icelandic and no pure(ish) Glaucous-winged.

17 October 2017 – PNW Migration Update

Another low density night.  Two in a row signals the waning of the season.  There’s still plenty of ducks to show up but they might just trickle in.

A weather system is headed in from the Gulf of Alaska.  Adventurous birders could scour the coast for oddball Asian vagrants.  Not my cup of tea but, just saying…

16 October 2017 – PNW Migration Update

MIA end of last week because the rain obscured any migrant returns, if any.

Last night we begin to see the waning of the season.  Fairly light across the Metro Region.  Most decent returns are along the western flanks of the Cascades.

Ducks are coming out of eclipse plumage.  Ruby-crowned Kinglet numbers are up as are the wintering sparrow numbers.  Pine Siskins are invading coastal counties. And a first report of a Rough-legged Hawk, also on the coast.

The Snow Geese are back on Sauvie Island.

10 October 2017 – PNW Migration Update

RTX is on line but it is still a bit wonky

There was a dramatic drop off in migration last night.  It could be the winds out of the SE but i don’t think so.  Maybe just pulse beat in wave movement.

09 October 2017 – PNW Migration Update

RTX is back on line … for now:

497
NOUS66 KPQR 070250
FTMRTX
Message Date: Oct 07 2017 02:56:19

Dopper Radar KRTX, serving SW Washington and NW Oregon was returned to service s
everal hours ago. So far, so good.

It was a spectacular flight last night!  Solid returns across the region.  Highlight was the coastal flight returns.  We don’t get to see these often and are the result of high flying migrants.

I didn’t get into the field much this weekend, just a walk down Rentenaar Rd on Sauvie Island, so i don’t have any ground reports of note.  Hunting season starts next weekend on ODFW Wildlife Management Areas – Saturday 14 October.  There’s not much water in the seasonal units like Rentenaar, Mudhen and Dead Willow.  Except for flyover Cackling Geese i didn’t see a single duck.

 

06 October 2017 – PNW Migration Update

FTMRTX
Message Date: Oct 05 2017 16:24:38
The Portland National Weather Service Doppler Radar will be down periodically fo
r routine maintenance until around noon. PT 10/05/2017 924 am PDT 1624 UTC.

FTMRTX
Message Date: Oct 06 2017 00:09:15
Doppler radar KRTX, serving NW Oregon and SW Washington, will be out of service
for unscheduled maintenance. A return to service is unknown at this time, but is
expected to be Friday.

Sheesh.

I’m not seeing any new reports except a Palm Warbler invasion along the coast.  I have noticed a sizable increase in pink-footed gulls around the metro area however.

The Seattle radar shows the same pattern as yesterday; good movement across the Strait, probably duck outflow from Nisqually, and use of the western flanks of the Cascades.  We haven’t really had any spectacular “green doughnut” days this fall so let’s take a look at Duluth MN to remind us of what that looks like.

While poking around Twitter i came across a very interesting abstract that may be of interest: HERE.

Innovative Visualizations Shed Light on Avian Nocturnal Migration

A bunch of science types put together an open source visualization package that ends up with something like this:

Pretty cool!  Maybe i can figure out how to use this research.  But not this year, maybe a winter time project.