Heavy migration into New Jersey

Favorable surface winds and clear skies opened the door to birds entering from the south, while less-than-optimal conditions over the northeast precluded much from leaving. The result should be a net gain of bird diversity and density across the region.

Here’s the radar from sunset last night through 5:30am this morning.

Frames are every 1/2 hour for reflectivity and velocity, and every hour for the regional composite. Click on the thumbnail to view the full-sized animation.
Base Reflectivity image from Fort Dix Base Velocity image from Fort Dix Base Reflectivity image from Dover AFB Base Velocity image from Dover AFB Composite Base Reflectivity image from the Northeastern USA

Birds were on the move across the Southeast and mid-Atlantic last night, while conditions over the Northeast were less than favorable. Both local radars show birds entering the radar after sunset and moving on a SSW–>NNE trajectory well into the morning hours.

As Susan Treesh pointed out early this morning (only the die-hards email me before 6:00am), the velocity images look “unblananced”. This is due to the upper level winds being northerly, and birds flying low to avoid them. There’s some N–>S movement across the radar, which represents the non-birds targets blowing with the wind, while most of the movement is S–>N, and represents bird migration.

With no precipitation present this morning, birds will be distributed across the landscape, making spring migrant traps the best bet for optimal birding conditions. I know I sound like a broken record, but Belleplain State Forest, Garret Mountain, and Sandy Hook should all be good today.

Good Birding


P.S. Come check out my migration forecast for the Mid-Atlantic on Birdcapemay.org

Please don’t forget to become a member of the Woodcreeper/Badbirdz flock today. Read the Become a Member post to find out more.

5 responses to “Heavy migration into New Jersey”

  1. At Hutcheson Memorial Forest in Somerset, NJ:

    FOS Ovenbird and White-eyed Vireo

    Black-throated Green Warbler
    Black-and-white Warbler
    Yellow-rumped Warbler (still lots)
    Prairie Warbler (more today)
    Common Yellowthroat

  2. 45 min. stroll around Research Woods (duke farms)

    3 vireo morning including FOS white-eyed and yellow-throated
    TONS of additional white-throated sparrows
    FOS Nashville warbler
    singing purple finches and females (6)
    American bittern continues on small pond

  3. The D&R Canal at Demott Lane held a large number of yellow-rumps and palms. Many b-g gnatcatchers. But the only thing really new was a good movement of chimney swifts.

  4. […] over the northeast precluded much from leaving. The result should be a net gain of bird divershttp://www.woodcreeper.com/2008/04/25/heavy-migration-into-new-jersey/Quincy Credit Union Extends Relationship with Open Solutions by Selecting its Relational Core […]

  5. […] over the northeast precluded much from leaving. The result should be a net gain of bird divershttp://www.woodcreeper.com/2008/04/25/heavy-migration-into-new-jersey/Lodi’s National Guard soldiers come home quietly troops adjusting to life outside Iraq Lodi […]


Get every new post delivered to your Inbox

Join other followers:

%d bloggers like this: