Nighthawks have arrived in Oregon. HERE is the map – not too impressive and these are the first arrivals to be sure. But — This kind of ends the arrival notifications for the season; birds are still on the move however; they are settling in and looking for summer nesting locations; filling in the gaps.
It is the beginning of a long weekend and after that i will be far afield and unplugged. There are a couple of days next week i will be checking in on migration; if i see anything pronounced i’ll post it — but i doubt that will happen.
Blue-winged Teal have been popping up here and there in the remaining wetlands throughout the region HERE This is a spring ritual as they are late migrants and occasional breeders that winter to our south. They are such magnificent birds it is always a treat to come across them.
The Mississippi Flyway is still electric when the conditions are favorable so we’ll take one last look at the National Composite Radar in today’s gallery as well.
The RTX loop from last night shows what migration looks like as it begins to wind down. Pretty decent conditions and diminished movement. But there are still birds in the pipeline as the radar from Medford (MAX) shows.
Another sign that the end is nigh — predawn Violet-green Swallows twittering (not Trump’s type of twittering) in the dark sky above.
Today’s wind map shows two things — the first is the advance of another high ridge; could get windy out of the north as it advances. The second is the pressure differential between the east side and west side of the northern Cascades. Hey Seattle — that’s where your winds are coming from. Check out Cliff’s excellent ‘explainer’ on his blog today.
Our ridge of high pressure is holding and we should have another day or two of this exceptional weather. There is a deep trough behind it that we need to keep an eye on though.
Last night was another good night for night flight. It petered out in the northern portion of the I5 corridor but still decent. Medford had one of it’s best nights of the season. So, i’m putting up the I5 radar loops; Medford to Seattle in today’s gallery.
I didn’t find any Willow Flycatchers this weekend but they are definitely filling in as seen HERE. I did come across my first Lazuli Buntings, but they have been here a couple of weeks now; i just can’t get out into the field as often as i like. HERE is their map.
RTX is back on line! Whew; that can take over a week sometimes. Came back on line late Friday.
Migration is entering it’s peak phase. Most, but not all vanguards have arrived and are being followed by the trailing hoards.
Wilson’s Warblers were over the top conspicuous when i was in the field Saturday. A few more reports of Swainson’s Thrush and i definitely heard my first Western Wood Pewee on Sunday and a handful of other reports are up on eBird. Lazuli Buntings are filling in. Bullock’s Orioles have made it to the Seattle area. No sign of Willow Flycatchers yet.
The Atlantic Flyway was the only flyway that was underwhelming in regard to it’s capacity. The rest look to be at full tilt.
I threw in the Seattle (ATX) loop today for good measure:
A rather significant drop off in activity last night. Perhaps the last two nights unleashed the majority of the pipeline. Activity was down in the Seattle area as well.
Looks like a pretty significant system is spinning up in the Gulf of Alaska and there is an “Atmospheric River” headed in on the Jet Stream. So it should be a very wet and stormy weekend putting a damper on further migrants and the strong fliers will be somewhat obscured by clouds.