Excellent night flight, and as i write this it is still at full tilt.
Only new migrant reported that i saw listed was Purple Martin on the southern Oregon coast.
But tonight is one of those teachable moments on the interaction of the weather and migration. So we’ll look at the conditions at 850 mb heights — note the stream lines and the ridge in the west and the trough in the east. Then check out the static image of the national radar composite. (The full loop can be viewed over at Paul’s archive: here)
The Pacific Flyway from the Mexican border to the Canadian border is solid blue with birds. Everywhere else? Central and Mississippi Flyways — nada. Atlantic Flyway? — just a tiny bit on the SE coast ahead of the advancing cold front.
Just a bit of narrative today as the radar images are a bit insipid.
Ospreys are back in force and already rebuilding their nesting platforms. Rufus Hummingbirds are staking out territories. Northern Rough-winged Swallows and Barn Swallows are being reported to the south of us. Great Blue Heron rookeries look to be ready for egg laying.
Looks like the Tundra Swans have left. I only saw one the whole weekend. Duck numbers are down, as are Golden-crowned and Fox Sparrow numbers. I had two Fox Sparrows in song this weekend.
A few more Violet-green Swallows but that is about it for now. We are still seeing a pretty solid movement of winter residents. Again, i think these are all waterfowl with a small mix of the vanguard migrants.
Down in the San Diego area more House Wrens and the first Cassin’s Vireos now being reported.
The San Diego area is reporting the first Wilson’s Warblers and House Wrens and Western Kingbirds and Bullock’s Orioles have made it into the Central Valley.
I’ve been keeping an eye on the National radar as well over on Paul’s archive. I haven’t seen anything spectacular. It’s pretty much all low density movement much like we’ve been seeing here in the Pacific Northwest.
But, birds are still moving north and you can see them dodging the rain cells in last night’s radar capture.