Posted by: NatureIsAwesome | March 27, 2011 @ 12:25 pm

Now That Is Spring Migration!

This is the radar from 5:00pm last night to 11:00am this morning..

Frames are every 1/2 hour. Click on the thumbnail to view the full-sized animation.
Base Reflectivity image from Key West, FL Base Velocity image from Key West, FL Base Reflectivity image from Miami, FL Base Velocity image from Miami, FL Composite base reflectivity for the Southeastern USA

There was a great flight out of Cuba last night, some coming in from the Caribbean, and another strong flight out of most Florida locations with the general trend being from the SE –> NW. Birds coming across the Straits appeared to be heading SE–>NW, as do birds heading over Miami, Melbourne and the Tampa radar stations. Reflectivity images recorded densities up to 20dbz which is indicative of over 10,000 birds per mile. As of 8:30 this morning birds appear to have dropped out of the air in Central and Northern Florida, while they continue to come over from the Atlantic and Florida Bay. Without any weather to concentrate birds, the best bets are likely the tried-and-true spring migrant traps. Inland and west coast locations should provide the best birding conditions as the winds pushed migrants in this direction.

Please drop us a comment and let us know how we are doing. You can post your sightings by clicking in the comments link below the tweet counter button. Your observations are valuable and indispensable in our search to improve the craft of reading the radar for the use of migratory patterns.

Nature is Awesome,
Angel and Mariel


  1. Some South Jacksonville arrivals on 3/26/11:

    Red-Eyed Vireo – early this AM
    Great-Crested Flycatcher – this afternoon (and checking on my dates, this might
    be an early Duval date, but only by three days)

    American Kestrel – 1-2 traveling north late afternoon.

    Julie Cocke

  2. A group of us did the park survey North Peninsula State Park off A1A and High
    Bridge including new restoration areas. We were astounded with the huge

    of peregrines, coopers, sharpies, kestrels, merlins and thousands, literally,

    Tree Swallows, sprinkled with Brn Swallows and Purple Martins. Our group alone

    counted 40 peregrines. Gigantics flocks of Great Blue Herons, Great Egrets,
    Double-crested Cormorants all heading north as well. Truly amazing. Turn your

    eyes to the skies tomorrow…

    Meret S Wilson

  3. It looks to me as if this morning’s migrants are going to pile up in front of those storms that are heading southward.


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