19 September 2017 – PNW Migration Update

Another night obscured by clouds.  But the birds are still moving south tonight,  we just can’t see them organized.  I know they are on the move because i’m hearing Greater White-fronted Geese flocks going overhead tonight.

We’ll take another look at the National Composite Radar. I put in a static shot, but remember you can always go to Paul’s Archive and see the whole loop, like last night’s HERE.

With pretty robust southerly winds moving across the Great Plains the Central Flyway, especially in the north was again on the moderate to light side of things.  But the eastern flyways had some pretty intense movement last night.

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18 September 2017 – PNW Migration Update

There is not much to see on the radar due to the clouds and rain so we’ll save some disc space today and leave out the radar loop.

Over the weekend FOS  and changes noted: Sandhill Cranes are back by the hundreds, Great Egrets are staging in the hundreds, Cackling Geese numbers reaching the thousands, Golden-crowned and Fox Sparrows are showing up, Lincoln’s Sparrow and Dark-eyed Junco numbers are increasing on the valley floor as they come down out of the mountains, and Double-crested Cormorants are moving inland.

I probably missed a few as well.

A static shot of the National Radar Composite shows the very active Mississippi Flyway but with good movement down the Atlantic and moderate movement along the Central Flyway

15 September 2017 – PNW Migration Update

Another solid night of migration with returns into the 20+ dBZ range.  More noticeable migrants pile out of the Nisqually Basin and into the Vancouver Basin.

Reports of more Cackling Geese, first Hermit Thrushes on the valley floor, Fox and Golden Crowned Sparrows as well.  We are well into the season and trips into the field this weekend should yield plenty of FOS birds.  The Chapman School Vaux’s Swifts are still piling into the chimney by the thousands each night.

Barn Swallows continue to roost and fly-out at dawn along the Willamette River in Yamhill County.  The evening roost flight was particularly dense last night.

14 September 2017 – PNW Migration Update

There’s still a lot of smoke in the air which is spiking returns along the Cascades.

Speaking of which the divers are now passing through the high lakes; loons, grebes, and diving ducks are being reported.  There is still sizable movement of shorebirds and the first Cackling Geese are being reported.

The Barn Swallows continue to put on a show at dawn.

13 September 2017 – PNW Migration Update

Another solid night.  We see an uptick in activity from yesterday with many readings at 20+ dBZ.  Also note the late night push down the I5 and into the Vancouver Basin.

Barn Swallows continue to put on a show both coming to roost and leaving in the morning.  The start coming in at 00:38 UTC (5:30 PM PDT) and ending around 02:25 a couple of hours later.

 

12 September 2017 – PNW Migration Update

A solid night for migrant movement but on the modest side of things.

Today’s local radar loop has yesterday’s Barn Swallow flyout and the evening roost settling in it.  These can be seen along the Willamette River in Yamhill County.

I put in the National Composite Radar today.  The Central and Mississippi Flyways are packed, especially in the north.  And as you would expect behind the remnants of Irma — not much.

08 September 2017 – PNW Migration Update

Things are picking up a bit, maybe into what i would call the Moderate range. We should be getting our first winter sparrows, but i haven’t seen any reports yet.

We have winds out of the south and a bit of weather, and all this damn smoke.  These factors may be holding things up a bit.

Also something is up with the radar image downloads; they start around 0600 UTC (11:00 PM PDT).  I used to get them starting about 4 or 5 hours earlier.  Oh well.