14 April 2017 – PNW Migration Update

We had an abbreviated flight last night; lasting from about 8 PM to 2 AM, and it wasn’t particularly widespread.  I’m pretty sure the birds are as sick of the rain as i am but at least it  was spread out and not too heavy.

Big night for the Atlantic and especially the Mississippi Flyways.

San Diego is reporting the first Lazuli Buntings and Western Kingbirds.  We don’t usually get Ash-throated Flycatchers in the Metro area but the Central Valley (CA) is now reporting them.

Locally: Hammond’s Flycatchers, House Wrens, Bullock’s Orioles and Yellow Warblers have now been reported.

12 April 2017 – PNW Migration Update

A solid night of ….. rain.  I’m sure birds are slipping through, we just can’t see them.

So i put in the National Composite (thanks Paul) and the wind map.  A good study today about migration and weather.  Big flight up the Central Flyway,  shut down behind the squall line but advancement up the Atlantic Flyway ahead of the weather.

Central Valley is reporting Bullock’s Orioles, Black-headed Grosbeaks, Purple Martins, House Wrens, Wilson’s, Nashville and Yellow Warblers.  The Yellow and Nashville Warblers have made it to the Metro Area as well as the Purple Martins.

29 April 2016 – PNW Migration Update

Last night was another night of moderate migration, just like yesterday.  A high pressure system is pushing in from the south and the winds at the head of the ridge are out of the west.  Crosswinds are not too much of a problem but certainly no incentive.

Heard around the listserves, Olive-sided Flycatcher, Hammond’s Flycatcher, Dusky Flycatcher, Pacific-slope Flycatcher, Western Tanager, Bullock’s Oriole; all being reported in the region.  Even a Lazuli Bunting report.

HERE’S a great read on PNW migration.  Put into perspective with migrations in other N American Regions, by luminary David Irons.

One of the things he brings up is a pet peeve of mine; the use of the term “fallout” in the Pacific Northwest.  There is no such thing here.  There may be a temporary bunching up of migrants in certain weather conditions where you might get to see 50 Yellow-rumps instead of 25.  That, folks is not a “fallout”  THIS is a “fallout”.

I miss John Stewart, sorry Trevor, you don’t cut it.  So, “Here it is, your moment of zen:”

 

19-20 March 2016 PNW Migration Update

Really nice movement over this weekend.

In San Diego:
More Pacific-slope Flycatcher, Bullock’s Orioles and Wilson’s Warblers.

Central Valley:
Black-throated Gray Warbler

Willamette Valey:
Orange-crowned Warblers, and a solid push of Violet-green Swallows.

I’m having problems uploading the loop from last night — i’ll try later.

18 March 2016 – PNW Migration Update

Well, it would appear waterfowl are on the move.

Looking at last night’s radar we can see low level migration but with 20+ dBZ patches coming from the Counties of Benton/Polk/Marion and Multnomah/Clark (WA).  Which are home to Finley/Basket Slough/Ankeney (FBA) NWR, and Sauvie Island WMA/Ridgefield NWR.  Note how the birds that take off from FBA split.  Some head to the coast and some head up the valley.  Curious.  There is also a slug of migrants heading up the western slopes of the Cascades.  Again, curious.

It’s a very interesting radar image today, but exactly what is going on is all speculation.  Tomorrow we’ll take a look at Paul’s national radar composite.

In the Region: Rufus Humming Birds are now being reported and a Loggerhead Shrike was reported on the east side of the Cascades.

South: Swainson’s Hawks have made it to the Central Valley and a Bullock’s Oriole has also been reported there.