Spotty migration over the eastern US and off to the Biggest Week!

Regional Overview

Last night much of the Mi-Atlantic and Ohio Valley experienced some light north winds which appeared to hold back migration. The composite radar shows spotty areas of moderate migration and then areas with less movement such as Maryland and n. Ohio. Even areas that were showing migration showed a lighter migration than previous nights. Some of the Nemesis Bird bloggers (Alex, Drew, Anna and Justine) are heading out to The Biggest Week in American Birding in nw Ohio today so I’ll be posting migration updates from there as Wi-fi allows.


Click on the thumbnail to view the full-sized animation.

All of the radar stations picked up some light bird migration, with the velocity radar showing movement heading north at all three locations. Obviously with a light migration, the number of new birds arriving will be low. Lots of birds are back on territory so if you can get out birding, check out good breeding habitat for birds, and you will probably pick up some other migrants moving through as well.

As always, please leave me comments on what you find out in the field.


Click on the thumbnail to view the full-sized animation.

Maryland migration was also really light with little directional component on the velocity radar.

New York

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New York had some moderate to heavy migration, showing some green on the reflectivity and a good S to N movement on the velocity radar. They should be getting a good push of warblers that Pennsylvania received in the last few days.


Click on the thumbnail to view the full-sized animation.

The birders at The Biggest Week in nw Ohio are reporting a spectacular list of birds being seen recently. With the light migration, all of the birds that were piled up along the lake may be moving a bit south of the lake in search of good foraging areas as they await the next good night of south winds.

Check Kenn Kaufman’s blog for more specifics on what to expect this time of year.

For migration updates or other regions check-
New England – Tom Auer’s blog
New Jersey – Woodcreeper by David La Puma
Florida/SE – Badbirdz Reloaded by Angel and Mariel Abreu
NW Ohio – Birding the Crane Creek by Kenn Kaufman
Wisconsin – Woodcreeper by David La Puma
Arizona – Words About Birds by Tim Schreckengost
Pac NW – Birds Over Portland by Greg Haworth

I need your help! These reports will only be as good as the feedback I get on these updates. Please leave comments on interesting patterns of migration you are seeing in the field so I can incorporate some ground truthing to my forecasts and predictions. Thanks!