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.

12 April 2016 – PNW Migration Update

Another night of moderate migration.  Seems like most movement was departures.

House Wren seems to be the new wave of summer residents to arrive en mass. But reports of early Western Tanagers and Swainson’s Thrush are popping up in the southern reaches of Oregon.

A new low pressure system is building offshore. If it holds off from forming rain cells we might get a nice southerly wind to push migrants northward tomorrow.

06 April 2016 – PNW Migration Update

Moderate movement around the region last night but heavier than last night.

Early House Wrens, more Nashville Warblers and Cassin’s Vireos. Common Yellowthroats are everywhere now.  Vesper Sparrows have returned to their north valley breeding grounds.

The weather is a mixed and confused bag of competing systems right now, so it’s hard to tell where this is going in the next few days.