12 Mar 2015 — Migration Update

The recent cloud cover and scattered showers have dampened, but not extinguished the movement northward.

Only reports of migrant movement of note in the PNW are the push of Rufous Hummingbirds, scattered Turkey Vultures, and a couple of early Ospreys.

I put both the Base Reflectivity and the Hydrometeor Classification (HC) returns from yesterday.  With the HC it becomes easier to pick the birds out of the  clouds. The BI (biological) returns are colored a brick red and really stand out.

10 Mar 2015 — Migration Update

Andy Williams, Edward Pola and George Wyle just weren’t birders.

This, right now, coming out from the winter gloom and into a promise of full on returns  — this is The Most Wonderful Time of the Year.  Well, OK, everybody gets their pick, but this is mine.  I just love Spring and the arrival of our migrant birds, the emergence of the Dragonflies, Butterflies, and Spring Wildflowers.  Mourning Cloaks, Grass Widows, Desert Parsley, Forktails — it is all happening NOW.

Barn Swallows, Ospreys, Sora, Swainson’s Hawks — they are all in the pipeline, and vanguards are being reported.  RC Kinglets have been singing for a while now.  Same with White-crowned Sparrows.  Bushtits are pairing up and the roving flocks of 20-30 birds are dissipating. It doesn’t get much better than this!

09 Mar 2015 — Migration Update

OK — now we’re getting serious.  First Ospreys are showing up in the Portland area.  In the San Diego area we have reports of Warbling Vireos, Wilson’s Warblers and Pacific-slope Flycatchers.

Not a solid green doughnut last night, but pretty darn close.  Movement probably mostly staging winter residents but some vanguard neo-trops could be sneaking in as well.  As the woodcreeper says. “birds are coming, look busy”

06 Mar 2015 — Migration Update

Looks like the birds are enjoying the unseasonal weather as well.  Last night we got our first peak at some rather heavy movement.  Green radar returns for a good portion of the night and more widespread than last night’s assault on Mt Hood.  That assault repeated, but we had heavy movement up the Willamette Valley and into the Puget Trough.

I still think these are staging waterfowl and not vanguard neo-trops.  List chatter is only reporting Turkey Vultures and Rufous Hummingbirds.  Much further south, like Anzo Borrego, Swainson’s Hawks are on the move.

I threw in the Hydrometeor loop today, just to confirm what is pretty obvious, these returns are indeed biological.

05 Mar 2015 – Migration Update

Migration density picked up a bit last night.  There is even some moderate (green returns) movement in the east counties.  Up through Clackamas and straight towards Mt. Hood.  Mount Hood is that bright green stationary dot on the border of Clackamas and Hood River Counties.

Click on image below to bring up a full screen view.

04 March 2015 — Migration Update

Birds are on the move!  Very low level, but enough to detect on the radar.  These are probably water fowl moving around and not any vanguard neo-tropicals.  The listserve chatter remains the same — early Rufous Hummers and Turkey Vultures.

February 2015 (first report)

I’ve been checking in on the radar every now and then.  The only thing i am seeing is low density movement.  It’s a bit heavier at times and i suspect this is ducks and geese moving up the valley between the refuges and wildlife management areas.

First reports for vanguard individuals for species of: Turkey Vulture, Tree and Violet-green Swallows and Rufus Hummingbirds.

That’s all for now.

Migration Update 13 October 2014

The migrants are still trickling through, again mainly along the east side.

The bulk of the Greater White-fronted Geese appear to have moved on.  I didn’t see any this weekend.  No signs of the Snow Geese or Swans yet, but a few more ducks have turned up – Ring-necked and Lesser Scaup.  All of the winter sparrows are firmly in place.

As a FYI: it’s a hunt day on Sauvie Island today.

Migration Update 10 October 2014

It may be getting a bit late in the season but it’s not over yet!  The past few nights since the last update were pretty much repeats.  Moderate to heavy migration with an east side bias.  If you can make it up to a high Cascade Lake before dawn it’s a good time to catch the haunting calls of loons as the sun comes up.

One interesting artifact in this and the last loop are the cloud capped peaks of the Cascades.  Rainier, Adams and Hood and just a hint of Helens stand out in the sea of green.

Migration Update 07 Oct 2014

Take a look at the radar last night.  Notice that the bulk of the migration is over on the east side, up over the Cascades.  These are probably the divers moving south.  Now is the peak time for finding loons, and grebes on the high Cascade lakes.