High pressure continues to dominate the region, while light surface winds appear to have triggered some birds to get the heck out of Dodge last night, and head into the Mid-Atlantic. Here’s the radar from sunset last night through 5:30am this morning.

Frames are every 1/2 hour. Click on the thumbnail to view the full-sized animation.

Movement was light, but evident last night, which came as a bit of a surprise to me given that winds aloft were out of the northwest. My take is that birds were chomping at the bit to our south; and a light surface wind coupled with the hormonal call of spring got them going. Not much action was observed north of New Jersey as is evident from the regional composite, and is consistent with the stronger northwest winds over New England. Over PA, to our west, though, conditions have improved in the last 24 hours, and migration was heavier. Most birds over NJ last night were headed in a general SW->NE trajectory, consistent with expected spring migration patterns. Expect the tried-and-true spring hotspots to see new birds this morning, while outlying areas will see less changing of the guard until we get a bigger flight into the region (looks like as early as tonight, but more likely Wednesday night into Thursday morning).
Good Birding

David