A very rainy weekend — again. It cleared up late Saturday night but too late for any birds of significant numbers to move north.
But, last night was clear and there was an accommodating south wind so the birds were on the move. We’re still at the beginning of the migration so we are not getting “green doughnuts” but we do have some 20+ dBZ returns.
In the Central Valley more Western Kingbirds are being reported as well as Common Yellowthroats. In the Portland area Violet-green Swallows, Rufus Hummingbirds, Osprey and an increasing number of shorebirds. I observed over sixty Greater Yellowlegs, a few L.B. Dowitchers and a large flock of peeps (unidentified) on the wing this weekend.
The Central and Mississippi Flyways were also pretty active last night. National Composite Radar is included thanks to Paul
As suspected (but not verified because of the terrible weather recently) migration is in full tilt. Mostly, waterfowl are on the move it seems. I’m not seeing any reports of widespread passerine movement. There has been reports of Violet-green Swallows and a few reports of vanguard Osprey. Last night’s movement was aided by a SE wind.
Well, The birds have been picking their way north for a few weeks now, but because of the nearly constant rain it has been damned hard to pick them out of the radar noise. Even the HC was not reliably designating biological returns.
Last night however, once the rain moved through, we got a decent migration signature. On today’s loop, wait for the rain to pass and you will see the flight — up into the 20 dBZ range.
Tree and Violet-green Swallows as well as Turkey Vultures have made it to the Portland area. Even Barn Swallows are being reported in Clallam County in Washington. Western Kingbirds are in the Central Valley in California as well. Waterfowl numbers are down a bit too.
Well, after a week of rain we finally got a clear night. Birds took flight but in very moderate numbers. There were a few patches where the density reached the 20 dBZ level but not many. It’s still early.
In the region: first Violet-green Swallows, Turkey Vultures are increasing, Black-bellied Plovers have been seen and the first reports of returning Osprey.
In the San Diego area the Swainson’s Hawks are staging in Anzo Borego, and the first Pacific Slope Flycatchers are being reported.